Plains Sentence Examples

plains
  • The plains and steppes already described lie either within or close to the tropics.

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  • The valleys afford rich pastures, and the plains produce every species of grain.

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  • The sea extended up the Murray basin into the western plains of New South Wales.

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  • On the plains slight frosts occur occasionally, and ice is sometimes seen on the.

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  • They still owned Savoy beyond the Alps, the plains of Bresse, and the maritime province of Nice.

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  • In the same way, whilst in the plains and hills round Naples snow is rarely seen, and never remains long, and the thermometer seldom descends to the freezing-point, 20 m.

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  • The kangaroo (Macro pus) lives in droves in the open grassy plains.

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  • Oxley now turned aside - led by Mr Evans's report of the country eastward - crossed the Arbuthnot range, and traversing the Liverpool Plains, and ascending the Peel and Cockburn rivers to the Blue Mountains, gained sight of the open sea, which he reached at Port Macquarie.

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  • The country is covered with limestone in many parts, and large isolated bluffs of this formation stand up in the plains both on the eastern and the western slopes.

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  • The Apulian volcanic formation consists of the great mass of Monte Volture, which rises at the west end of the plains of Apulia, on the frontier of Basilicata, and is surrounded by the Apennines on its south-west and north-west sides.

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  • Enormous flocks are possessed by professional sheep-farmers, who pasture them in the mountains in the summer, and bring them down to the plains in the winter.

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  • It is chiefly a prairie region, with treeless plains of from 5 to 40 m.

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  • There are wide areas on the plains of West Siberia and on the high plateau of East Siberia, which, virtually, are still passing through the Lacustrine period; but the total area now under water bears but a trifling proportion to the vast surface .which the lakes covered even at a very recent period, when Neolithic man inhabited Siberia.

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  • The extensive lowlands which stretch over more than one half of the area, as well as the elevated plains, lie open to the Arctic Ocean.

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  • On its western side, which is occupied by an immigrant Chinese population, are open and well-cultivated plains; on the east it is mountainous, and occupied by independent indigenous tribes in a less advanced state.

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  • Immense marshy plains covered with the dwarf birch take their place in the north as the tundras are approached.

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  • The southern system, which at one time rendered fertile the great plains of.

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  • Here the land loses its semi-tropical character and resembles more the plains of the Orange Free State and the Transvaal.

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  • It is fringed on either side by high border ridges, which -subside on the north-west into a stretch of high plains, 1500 to 2000 ft.

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  • The mountain-sides are commonly clothed with pine forests, and the plains with grasses or shrubs.

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  • The high plains of the west slope of the plateau are also rich prairies diversified with woods.

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  • Although agriculture is carried on on the upper Amur, where land has been cleared from virgin forests, it really prospers only below Kumara and on the fertile plains of the Zeya and Silinji.

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  • The Aka country is very difficult of access, the direct road from the plains leading along the precipitous channel of the Bhareli river, which divides the Aka from the Daphla country.

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  • Here it bends south again, and with many a zigzag continues its general westerly direction, crossing the arid plains of Bechuana, Bushman and Namaqualands.

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  • C. Jerdon states that the Indian ratel is found throughout the whole of India, from the extreme south to the foot of the Himalaya, chiefly in hilly districts, where it has greater facilities for constructing the holes and dens in which it lives; but also in the north of India in alluvial plains, where the banks of large rivers afford equally suitable localities wherein to make its lair.

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  • Large areas of these great river plains are annually flooded, the flood-plains of the Amazon extending nearly across the whole country and comprising thousands of square miles.

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  • This is especially true of the flood plains where the annual inundations prevent the formation of humus and retard forest growth.

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  • Between Parahyba and southern Bahia forests and open plains are intermingled; thence southward the narrow coastal plain and bordering mountain slopes are heavily forested.

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  • Nobrega's first act was one which has exercised the most beneficial influence over the social system of Brazil, namely, the establishment of a college on the then unreclaimed plains of Piratininga.

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  • The banks are usually low, in part forested and inundated at high water, but away from the river the country appears to consist of dry plains covered with mimosa scrub.

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  • He enlisted in the Third Virginia regiment, in which he became a lieutenant, and subsequently took part in the battles of Harlem Heights, White Plains, Trenton (where he was wounded), Brandywine, Germantown, and Monmouth.

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  • The remainder of this extensive territory ranges at altitudes of 3000 to 4500 ft., even in the bottoms of the river valleys and in the lower plains; while the ridges which constitute the water-partings rise about 2000 ft.

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  • Chiefly owing to the dryness of climate, its physical characteristics are similar to those of Mongolia proper, except that the altitude of the plains is much lower.

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  • On the plains rain rarely falls during the heats of summer; and the showers though violent are generally of short duration, whilst the moisture is quickly evaporated owing to the aridity of the atmosphere.

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  • Then immigration began to fill the deserted plains once more, and by 1785 the population had trebled itself.

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  • The central plains, which have the most fertile soil, and from the geographical conditions of the country form its centre of gravity, are occupied almost exclusively by the Magyars, the most numerous and the dominant race.

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  • The principal products are rubber, cacao and nuts; cattle are raised on the elevated plains of the north, while curing fish and collecting turtle eggs for their oil give occupation to many people on the rivers.

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  • On the west, Badakshan is bounded by a line which crosses the Turkestan plains southwards from the junction of the Kunduz and Oxus rivers till it touches the eastern waterdivide of the Tashkurghan river (here called the Koh-i-Chungar), and then runs south-east, crossing the Sarkhab affluent of the Khanabad (Kunduz), till it strikes the Hindu Kush.

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  • It is a region of lakes and morasses, of arid plains and high temperatures, but experiments with irrigation toward the end of the 19th century were highly successful and considerable tracts have since been brought under cultivation.

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  • Meerkats are sociable animals, living in holes in the rocks on the mountains, and burrowing in the sandy soil of the plains.

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  • The Lao, who descended from the mountain districts of Yunnan, Szechuen and Kweichow to the highland plains of upper Indo-China, and drove the wilder Kha peoples whom they found in possession into the hills, mostly adopted Buddhism, and formed small settled communities or states in which laws were easy, taxes light and a very fair degree of comfort was attained.

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  • It consists of two portions - a vast, hilly or mountainous area, densely wooded, in the south-east and south, and level plains in the north-west between the Orinoco and the Apure and the mountains.

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  • Since the time of Humboldt, however, the aspect of these plains would seem to have changed.

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  • So uniform is the level over a great part of these plains that in the rainy season hundreds of square miles are submerged, and the country is covered with a network of connecting channels.

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  • They are extensive grassy plains, the lowest being the bed of an ancient inland lake about which is a broad terrace (mesa), the talus perhaps of the ancient encircling highlands.

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  • Successive civil wars prevented their recovery, and these great plains which ought to be one of the chief sources of meat supply for the world are comparatively destitute of stock, and the only source of revenue from this industry is the small number of animals shipped to the West Indies.

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  • The climatic conditions are not so favourable as in Argentina, but these are counterbalanced to some extent by the great river system of the Orinoco, whose large navigable tributaries cross the plains from end to end, and whose smaller streams from the surrounding highlands provide superior opportunities for water storage and irrigation.

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  • On the mesas alfalfa could be substituted for the native grasses and be used for stock when the pasturage of the lower plains is not available.

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  • In its upper and in its lower course the river flows either through high alluvial plains, in which it has scored a deep channel, or across swamp land.

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  • In the coast plains they become deep and sluggish.

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  • From the Khawak to the head of the Ghorband (a river of the Hindu Kush which, rising to the north-west of Kabul, flows north-east to meet the Panjshir near Charikar, whence they run united into the plains of Kohistan) the Hindu Kush is intersected by passes at intervals, all of which were surveyed, and several utilized, during the return of the Russo-Afghan boundary commission from the Oxus to Kabul in 1886.

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  • Those utilized were the Kaoshan (the "Hindu Kush" pass par excellence), 14,340 ft.; the Chahardar (13,900 ft.), which is a link in one of the amir of Afghanistan's high roads to Turkestan; and the Shibar (9800 ft.), which is merely a diversion into the upper Ghorband of that group of passes between Bamian and the Kabul plains which are represented by the Irak, Hajigak, Unai, &c. About this point it is geographically correct to place the southern extremity of the Hindu Kush, for here commences the Koh-i-Baba system into which the Hindu Kush is merged.

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  • The northern part of this tract is barren hilly country, but in the west and south are rich alluvial plains containing some of the most fertile lands of the province.

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  • The northern portion of this tract, which on the east touches the basin of the Salween river, is hilly; the remainder towards the confluence of the Salween, Gyaing and Attaran rivers consists of broad fertile plains.

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  • The Karens and Shans who settle in the plains expend much more care in ploughing and weeding their crops.

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  • North of the plateau rises a well-watered and undulating belt of country, into which run low ranges of limestone hills, sometimes arid, sometimes covered with dwarf-oak, and often shutting in, between their northern and north-eastern flank and the main mountain-line from which they detach themselves, rich plains and fertile valleys.

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  • At the two extremities of New Caledonia, parallel longitudinal ranges of mountains enclose valleys; for the rest the island consists essentially of confused masses and ranges of mountains, rising to an extreme elevation of 5387 ft., the plains being chiefly the deltas of rivers.

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  • The larger rivers in the wet season form impassable morasses, especially in the S.E., where the mountains rise in isolated masses from flat plains.

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  • Tobacco is extensively cultivated in the plains and on the rich alluvial deposits along the sides of rivers.

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  • In the higher parts there are fine plains where Glaser found numerous Himyaritic remains, and which he considers were undoubtedly cultivated formerly, but they have long fallen out of cultivation owing to denudation and desiccation - the impoverishment of the country from these causes is increasing.

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  • The climate is extremely dry, but this is compensated for by the heavy mists which sweep up from the plains during the rainless months and exercise a most beneficial effect in the coffee-growing districts.

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  • The stony plains which cover so large a part of the country are often covered with acacia jungle, and in the dry water-courses a kind of wild palm, the dom, abounds, from the leaves of which baskets and mats are woven.

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  • The influence of this mission does not extend much beyond the Turkish frontier, but it is strong in the Persian plains.

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  • They beat down all opposition, wrested even Bosporus in the Crimea from the empire, and by the annihilation of the Ephthalites completed the ruin of the White Race of the plains from the Oxus to the Don.

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  • Nevertheless, though overpowered in the end, the Khazars had protected the plains of Europe from the Mahommedans, and made the Caucasus the limit of their conquests.

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  • From very early times the surrounding plains were given over to horse and cattle-raising.

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  • The township is at the head of navigation on the Charles, and occupies the fertile undulating plains along the river running back to a range of hills, the highest of which are Whitney Hill (200 ft.) and Meeting House Hill (250 ft.).

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  • It contains stupendous chains of mountains, elevated plains and table-lands, warm and fertile valleys and ravines.

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  • The range of the Andes in south Peru has a high plateau to the west and the vast plains of the Amazonian basin to the east.

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  • The country between the Huallaga and the Ucayali, traversed by the Eastern Cordillera, is called the Pampa del Sacramento, and is characterized by extensive grassy plains.

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  • The alluvial deposits are found both in the beds of the small streams and in the soil of the small plains or pampas.

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  • The conquering tribe or tribes had made their way to the sierra from the plains, and found themselves a new land sheltered from attack amidst the lofty mountains that hem in the valley of Cuzco and the vast lake basin of Titicaca, situated 12,000 ft.

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  • On the northern side a lofty semicircular cliff, reaching a height of 3714 ft., half encircles the present active cone, and descends in long slopes towards the plains below.

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  • The clouds of steam condensed to copious torrents, which, mingling with the fine ashes, proiced muddy streams that swept far and wide over the plains, aching even to the foot of the Apennines.

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  • The destructive action of floods, however, led to the abandonment of this alignment, and the railway now follows the Mashkaf valley (which debouches into the plains close to Sibi), and is carried from near the head of the Mashkaf to a junction with the Bolan at Mach.

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  • Dr Jack, late government geologist of Queensland, considers the extent of the coal-fields of that state to be practically unlimited, and is of opinion that the carboniferous formations extend to a considerable distance under the Great Western Plains.

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  • The larger islands have some fertile and well-watered valleys and plains.

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  • Leopold, among other useful works, drained the Val di Chiana, and restored those fertile upland plains to agriculture.

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  • P. canadensis, the "cotton-wood" of the western prairies, and its varieties are perhaps the most useful trees of the genus, often forming almost the only arborescent vegetation on the great American plains.

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  • In America it seldom attains the large size it often acquires in England, and it is there of less rapid growth than the prevailing form of the western plains; the name of "cotton-wood" is locally given to other species.

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  • This tree, the "liard" of the Canadian voyageur, abounds on many of the river sides of the northwestern plains; it occurs in the neighbourhood of the Great Slave Lake and along the Mackenzie River, and forms much of the driftwood of the Arctic coast.

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  • Broadly speaking, the American portion of the sub-region consists of an Atlantic and Pacific forest area and an intervening non-forest one, partly occupied by the Rocky Mountains, partly by intervening plains.

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  • The Arab astronomers measured a degree on the plains of Mesopotamia, thereby deducing a fair approximation to the size of the earth.

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  • His armies crossed the plains beyond the Caspian, penetrated the wild mountain passes northwest of India, and did not turn back until they had entered on the Indo-Gangetic plain.

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  • Masudi, a great traveller who knew from personal experience all the countries between Spain and China, described the plains, mountains and seas, the dynasties and peoples, in his Meadows of Gold, an abstract made by himself of his larger work News of the Time.

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  • The rushes to gold-fields and diamond-fields are typical in- stances; the growth of towns on coal-fields and near other sources of power, and the rapid settlement of such rich agricultural districts as the wheat-lands of the American prairies and great plains are other examples.

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  • From 104 to for he served again under Marius in the war with the Cimbri and Teutones and fought in the last great battle in the Raudian plains near Verona.

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  • The plains about Sabzawar are highly cultivated by the Nurzai Duranis, and each village boasts its own little mud fort.

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  • The department takes its name from the river Ain, which traverses its centre in a southerly direction and separates it roughly into two wellmarked physical divisions - a region of mountains to the east, and of plains to the west.

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  • The miasmatic exhalations caused by the sun playing on stagnant waters after the floods give rise to the "Sennar fever," which drives even the natives from the plains to the southern uplands.

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  • The geological formation includes (like that of Java) three regions - the central volcanic, the southern peninsula of Tertiary limestone, and alluvial plains between the older formations.

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  • Thus it consists of the immense plains and flat lands which extend between the plateau formation and the Arctic Ocean, including the series of parallel chains and hilly spurs which skirt the former region on the N.W.

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  • Owing to the orographical structure of the East-European plains, the river systems have become more than usually prominent and.

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  • By their means the plains of the central plateau - the very heart of Russia, whose natural outlet was the Caspian - were brought into water-communication with the Baltic, and the Volga basin was connected with the Gulf of Finland.

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  • Conifers are rare, and the Scotch pine, which is abundant on the sandy plains, takes the place of the Abies.

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  • The steppes proper are very fertile, elevated plains, slightly undulating, and intersected by numerous ravines which are dry in summer.

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  • European plains - the tundras, including the Arctic islands, the forest region, especially the coniferous part of it, and the ante-steppe and steppes of the black earth region.

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  • The Russian plains have been, however, the scene of so many migrations of successive races, that at many places a series of deposits belonging to widely distant epochs are found one upon another.

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  • The other part comprehends inner Persis lying northwards; it enjoys a pleasant climate and has fertile and well-watered plains, gardens with trees of all kinds, rich pasturages and forests abounding with game; with the exception of the olive all fruits are produced in profusion, particularly the vine.

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  • There are broad plains covered with salt and alkali, and others supporting only scattered bunch grass, sage bush, cactus and other arid land plants.

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  • This vegetation, covering plains, mesas, and even extending up the sides of the mountains, gives the entire landscape the greyish or dull olive colour characteristic of the Great Basin.

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  • The three principal areas in which irrigation is practicable are along the Humboldt river, in the plains watered by the Carson, Truckee and Walker rivers, and at the foot of the mountains along the western edge of the state.

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  • The prevailing soils are sand and gravel loams, but other varieties are numerous, ranging from rich alluvial beds of extinct lakes, as in parts of Lyon and Esmeralda counties, to the strongly alkaline plains of the southern deserts.

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  • The coast plains were in parts very fertile, especially the (now malarious) lower valley of the Crathis.

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  • Tobacco and cotton succeed well in the plains and low grounds, though not at present cultivated to any great extent.

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  • Since the Spanish conquest, the Mayas have clung to the semi-barren, open plains of the peninsula, and have more than once revolted.

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  • Some of the high plains, however, as at Barbacena, serve as health resorts for the coast districts.

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  • South of this enclosed depression is another great hydrographic barrier which parts it from the low plains of the Amur, of China, Siam and India, bordered by the shallows of the Yellow Sea and the shoals which enclose the islands of Japan and Formosa, all of them once an integral part of the continent.

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  • The broad mountainous slope by which it is connected with the lower levels of Hindostan contains the ranges known as the Himalaya; the name Kuen-lun is generally applied to the northern slope that descends to the central plains of the Gobi, though these mountains are not locally known under those names, Kuen-lun being apparently a Chinese designation.

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  • The southern and south-western face follows the coast closely up the Persian Gulf from the mouth of the Indus, and is formed farther west by the mountain scarp, which, rising in many points to 10,000 ft., flanks the Tigris and the Mesopotamian plains, and extends along Kurdistan and Armenia nearly to the 40th meridian; beyond which it turns along the Taurus range, and the north - eastern angle of the Mediterranean.

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  • The western part of the range, which received the name of Paropamisus Mons from the ancients, diminishes in height west of the 65th meridian and constitutes the northern face of the Afghan and Persian plateau, rising abruptly from the plains of the Turkoman desert, which lies between the Oxus and the Caspian.

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  • A line of elevation is continued west of the Altai to the Ural Mountains, not rising to considerable altitudes; this divides the drainage of south-west Siberia from the great plains lying north-east of the Aral Sea.

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  • This evidence of a gradual process of upheaval still in action may throw some light on the physical (especially the climatic) changes which must have passed over that part of Asia since Balkh was the " mother of cities," the great trade centre of Asia, and the plains of Balkh were green with cultivation.

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  • Some of the Siberian forms, thus brought into proximity with the Indian flora, extend to the rainy parts of the mountains, and even to the plains of upper India.

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  • But within this region there is a very great variation between the vegetation of the more humid and the more arid regions, while the characteristics of the flora on the higher mountain ranges differ wholly from those of the plains.

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  • The higher mountains rise abruptly from the plains; on their slopes, clothed below almost exclusively with the more tropical forms, a vegetation of a warm temperate character, chiefly evergreen, soon begins to prevail, comprising Magnoliaceae, Ternstroemiaceae, subtropical Rosaceae, rhododendron, oak, Ilex, Symplocos, Lauraceae, Pinus longifolia, with mountain forms of truly tropical orders, palms, Pandanus, Musa, Vitis, Vernonia, and many others.

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  • Of other useful woods found in the plains may be named the babool, Acacia; toon, Cedrela; and sissoo, Dalbergia.

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  • In general terms they extend, with modifications of character probably due to admixture with other types and to varying conditions of life, over the whole of northern Asia as far south as the plains bordering the Caspian Sea, including Tibet and China, and also over the IndoMalayan peninsula and Archipelago, excepting Papua and some of the more eastern islands.

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  • By the Kabul valley route, which includes at its head the group of passes across the Hindu Kush which extend from the Khawak to the Kaoshan, all those central Asian hordes, be they Sacae, Yue-chi, Jats, Goths or Huns, who were driven towards the rich plains of the south, entered the Punjab.

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  • By the western gates of Makran prehistoric irruptions from Mesopotamia broke into the plains of Lower Sind, and either passed on towards the central provinces of India or were absorbed in the highlands south of Kalat.

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  • The battle in the Mauriac plains of which he is really the sole historian, is now seen to have had important bearings on the destinies of the world.

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  • The soil of these plains is generally very fertile and they support a population of nearly 2,800,000 Russians, composed of Cossacks and peasant immigrants, settled chiefly along the rivers and grouped in large, wealthy villages.

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  • The higher parts of the plains, which are deeply trenched by the upper tributaries of the rivers, are inhabited by various Caucasian races - Kabardians and Cherkesses (Circassians) in the west, Ossetes in the middle, and several tribal elements from Daghestan, described under the general name of Chechens, in the east.

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  • The view over the plains is fine and extensive.

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  • In the south, and in the plains, the harvest, as might be expected, commenced some weeks earlier than in the northern and mountainous districts.

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  • The ground in the valleys and plains bear very good corn, but especially bears barley or bigge, and oats, but rarely wheat and rye."

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  • Ireland, she possessed six times as many sheep. The cattle population of England alone slightly exceeded that of Ireland, but cattle are more at home on the broad plains of England than amongst the hills and mountains of Wales and Scotland, which are suitable for sheep. Hence, whilst in England sheep were not three times as numerous as cattle, in Wales they were nearly five times, and in Scotland nearly six times as many.

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  • Nairobi is built on the Athi plains, at the foot of the Kikuyu hills and 545 0 ft.

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  • Like the Yue-Chi they have probably contributed to form some of the physical types of the Indian population, and it is noticeable that polyandry is a recognized institution among many Himalayan tribes, and is also said to be practised secretly by the Jats and other races of the plains.

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  • The state lies on the borderland between the Prairie Plains and the Alleghany Plateau.

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  • The disturbances among the underlying rocks of Ohio have been slight, and originally the surface was a plain only slightly undulating; stream dissection changed the region to one of numberless hills and valleys; glacial drift then filled up the valleys over large broken areas, forming the remarkably level till plains of northwestern Ohio; but at the same time other areas were broken by the uneven distribution of the drift, and south-eastern Ohio, which was unglaciated, retains its rugged hilly character, gradually merging with the typical plateau country farther S.E.

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  • The till plains of north-western Ohio are drained chiefly by the Maumee and Sandusky rivers, with their tributaries, and the average fall of the Maumee is only 1.1 ft.

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  • Under the southern slope of Parnassus were situated the two small plains of Crisa and Anticyra, separated by Mt Cirphis, an offshoot from the main range.

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  • They occur up mountain slopes as far as vegetation extends, in tropical valleys and forests, in open grassy plains, in sandy deserts, and even in fresh-water ponds and between tide-marks on the seashore.

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  • Kurds live upon the Commagenian plains here and there, as also in the northern trans-Euphratean plains.

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  • Among them in the Tauras and Amanus, and outnumbering them on the plains, are Armenian communities, the remains of the Rupenian invasion of the 10th century A.D.

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  • The eastern part, however, contains large barren plains, showing some stunted vegetation, and having numerous saline deposits.

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  • The temperature of the Andean region is cold even in summer, but on the lower plains it is hot in summer, and only moderately cold in winter.

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  • Owing to the configuration of the soil, the climate of Moravia varies more than might be expected in so small an area, so that, while the vine and maize are cultivated successfully in the southern plains, the weather in the mountainous districts is somewhat rigorous.

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  • The region was repeatedly raided by camp followers of each army; earthworks and a fort, commanding the Hudson ferry and the ferry to Paramus, New Jersey, were built; the British army made Dobbs Ferry a rendezvous, after the battle of White Plains, in November 1776, and the continental division under General Benjamin Lincoln was here at the end of January 1777.

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  • In the plains the soil is generally of sand or alluvial clay, covered in the valleys with a rich vegetable mould.

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  • The general state of the island when the Japanese assumed possession was that the plain of Giran on the eastern coast and the hill-districts were inhabited by semibarbarous folk, the western plains by Chinese of a degraded type, and that between the two there existed a traditional and continuous feud, leading to mutual displays of merciless and murderous violence.

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  • The state occupies an elevated plateau, extending from two spurs of the Sierra Madre, called the Sierra Fria and Sierra de Laurel, eastward to the rolling fertile plains of its eastern and south-eastern districts.

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  • The fertile valleys of the north and west are devoted to agriculture and the plains to stockraising.

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  • As is shown by its name the province is situated in the centre of the Indian peninsula, comprising a large proportion of the broad belt of hill and plateau country which separates the plains of Hindustan from the Deccan.

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  • The provinces may be divided into two tracts of upland and three of plain, consisting of the Vindhya and Satpura plateaus, and the Berar, Nagpur and Chhattisgarh plains.

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  • To the south of the Satpuras and extending along its base from west to east lie successively the Berar, Nagpur and Chhattisgarh plains.

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  • In some parts it rises into irregular uplands and elevated plains, interspersed with detached rocks of granite; in others it sinks into marshy lowlands, which frequently remain under water during the rainy season.

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  • The middle and eastern divisions of the district, forming the south-western part of the Mahanadi delta, consist entirely of alluvial plains, watered by a network of channels through which the most southerly branch of that river, the Koyakhai, finds its way into the sea.

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  • The plains inland from Berbera, and the maritime margins between the coast and foot of the plateau, consist of limestones of Lower Oolitic age with Belemnites subhastatus.

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  • The greater part of the country is covered either with tall coarse grasses (these open plains being called ban), or more commonly with thick thorn-bush or jungle, among which rise occasional isolated trees.

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  • Ostriches are found in the open plains; the rivers swarm with crocodiles, but hippopotami are rare.

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  • Topography, eec. - Physically the protectorate may be described as almost mountainous in contrast with the somewhat monotonous plains of the interior.

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  • The Haud (only the northern part of which is British territory - the rest is Abyssinian) consists partly of thorn jungle, the haud of the Somali, partly of rolling grass plains, called ban, and partly of semi-desert country called aror.

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  • The country consists chiefly of slightly elevated arid plains, largely waterless save along the southern frontier.

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  • A fertile province, in the eastern and southern portions its surface consists chiefly of plains almost entirely treeless.

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  • The gopher is a resident of the dry plains.

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  • Besides run-nan Fu, the capital, the province contains thirteen prefectural cities, several of which - Teng-ch`uen Fu, Ta-li Fu, Yung-ch`ang Fu, Ch`u-siung Fu and Lin-gan Fu, for example - are situated in the valley plains.

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  • The table-land consists of a series of fertile plains, of varying size and elevation separated from each other by upland tracts or mountains, and it is drained almost entirely by the river Iris (Yeshil Irmak) and its numerous tributaries, the largest of which are the Scylax (Tchekerek Irmak) with many affluents and the Lycus (Kalkid Irmak), all three rising in the highlands near, or on, the frontier of Armenia Minor and flowing first in a westerly and then in a north-westerly direction to merge their waters in a joint stream, which (under the name of the Iris) pierces the mountain-wall and emerges on the east of Amisus (Samsun).

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  • Plains.Japan, though very mountainous, has many extensive plains.

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  • The climate is that of the other central states of Germany, temperate in the valleys and plains and somewhat inclement in the hilly regions.

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  • Some are found in more or less open plains, while others inhabit swampy districts.

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  • It grows to a length of 6 ft., lives in swamps, plantations, forests, on the plains and on the hills, and is very prolific, producing dozens of young, which at birth are 10 in.

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  • The intermediate rice plains stretch inland for about 40 m.

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  • The intermediate rice plains, known as the Mogholbandi, from their having been regularly settled by the Mahommedans, have yielded to the successive dynasties and conquerors of Orissa almost the whole of the revenues derived from the province.

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  • Unlike the other wings of the great central system of Europe, the Carpathians, which form the watershed between the northern seas and the Black Sea, are surrounded on all sides by plains, namely the great Hungarian plain on the south-west, the plain of the Lower Danube (Rumania) on the south, and the Galician plain on the north-east.

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  • After wearisome and disheartening failures, embittered by the pain of an internal disease, Wolfe crowned his work by the decisive victory on the Plains of Abraham (13th of September 1759) by which the French permanently lost Quebec. Twice wounded earlier in the fight, he had refused to leave the field, and a third bullet passing through his lungs inflicted a mortal injury.

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  • So recently as the middle of the 19th century, however, it covered the western half of the continent, and could be reached by a journey of 1600 or 1700 miles from Boston to the plains of Nebraska.

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  • This era was established to commemorate the victory obtained by Julius Caesar on the plains of Pharsalia, on the 9th of August in the year 48 B.C., and the 706th of Rome.

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  • Through this stretch of dasht the drainage from the main water-divide breaks downwards to the plains of Herat, where it is arrested and utilized for irrigation purposes.

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  • The surface of the country is for the most part very mountainous, being traversed towards the south by the great Cantabrian chain; but at the same time it is diversified with numerous narrow valleys and small plains.

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  • For weeks he scoured the interminable snow-covered plains of Poland in pursuit of the Polish guerillas, penetrating as far south as Jaroslau in Galicia, by which time he had lost two-thirds of his 15,000 men with no apparent result.

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  • There are cork woods and marble quarries in the vicinity, and the valley of the Seybuse and the neighbouring plains are rich in agricultural produce.

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  • The surface of the province is flat and low, chiefly open plains thinly covered with grass.

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  • The plains of Bundelkhand are intersected by three mountain ranges, the Bindhachal, Panna and Bander chains, the highest elevation not exceeding 2000 ft.

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  • The surface is principally a series of plains sloping S.E.

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  • In the Great Plains region and in the TransPecos Province the rivers have cut deep canyons, and the character of the longer rivers in their upper courses varies from mere rivulets late in summer to swift and powerful streams during spring freshets.

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  • Originally great herds of bison roamed over the Texas plains, and deer, bears and wolves were numerous, especially in the forests.

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  • Coyotes or prairie wolves (of which there is a local sub-species, Canis nebracensis texensis), grey wolves, prairie dogs (gophers), and jack rabbits are common on the plains; less common are the grey wolf or lobo (Canis griseus) and the timber wolf; and there are several species of foxes, including the swift.

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  • The green rattlesnake (Crotalus molossus) inhabits the valley of the Rio Grande; the plains rattlesnake (Crotalus confluentus), the north-western counties; the diamond rattlesnake (C. adamanteus), the wooded river bottoms; the Texas rattlesnake, western Texas and the southern coast counties; the banded rattlesnake, a few widely separated woodland districts.

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  • The flora of the Great Plains region, consisting principally of nutritious grasses, enters the north-western portion of the state and extends south to the Edwards Plateau and east into the Prairie Plains region.

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  • In the broad river valleys of the eastern part of the Prairie Plains region are forests and isolated groves consisting principally of pecan, cypress, cottonwood and several species of oak.

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  • Farther west two narrow belts of timber, consisting mostly of stunted post oak and black jack, and known as the Eastern and Western Cross Timbers, cross the prairies southward from the Red river, and a low growth of mesquite, other shrubs and vines are common in the eastern half of the Prairie Plains.

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  • The western half of these plains has only a few trees along the watercourses and some scraggy bushes of oak, juniper and cedar in the more hilly sections.

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  • Grasses representing several species also cover most of the Great Plains, the uplands in the southern portion of the Coastal Plain, and the treeless portions of the Prairie Plains and the Trans-Pecos region.

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  • The eastern part of the Prairie Plains is a belt known as the Black Prairie, and it has a rich black soil derived from Upper Cretaceous limestone; immediately west of this is another belt with a thinner soil derived from Lower Cretaceous rocks; a southern part of the same plains has a soil derived from granite; in a large area in the north-west the plains have a reddish clay soil derived from Permian rocks and a variety of soils - good black soils and inferior sandy and clay soils - derived from Carboniferous rocks.

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  • Southwards of Mergui town it consists chiefly of low mangrove swamps alternating with small fertile rice plains.

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  • To the south lies a rolling plateau of basaltic formation (with the sacred town of Multai, and the springs of the river Tapti at its highest point), extending over the whole of the southern face of the district, and finally merging into the wild and broken line of the Ghats, which lead down to the plains.

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  • Its height above the plains and the neighbourhood of extensive forests moderate the heat, and render the temperature pleasant throughout the greater part of the year.

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  • They are spread over the central plains, and have for neighbours on the south-east, between Nyasa and the Rufiji, the warlike Wahehe.

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  • It appears to consist in the main of a continuation of an axis of old schists and slates, with granite intrusions, and flanked by coastal plains with Cretaceous or Jurassic, and Miocene beds, with Pleistocene sands and reefs and volcanic rocks.

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  • The country has little water and only a small part of it is under cultivation, the remainder being composed of arid, waterless plains, deserts - some stony, others with moving sands - barren hills and mountains.

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  • The climate is mild in summer, fitful in autumn and spring, and very cold in winter, as even the plains are high and shut in on three sides by mountains snow-clad during several months.

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  • Very interesting to ornithologists are the few heath hens, the eastern representative of the prairie hen (pinnated grouse), which are found on the island of Martha's Vineyard, and are the sole survivors in the eastern states of one of the finest of American game birds, now practically exterminated even on the western plains.

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  • There seems to be, however, not a unity but a duality in its plan of construction, for the two parts, North and South America, resemble each other not only in outline but, roughly speaking, in geological evolution also; and the resemblances thus discovered are the more remarkable when it is considered how extremely small is the probability that among all the possible combinations of ancient mountain systems, modern mountain systems and plains, two continents out of five should present so many points of correspondence.

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  • Their advance to the south was checked by the indomitable opposition of the Araucanians, but from the southern Andes the Spaniards overflowed on to the great plains which now form the interior of the Argentine Republic. The first permanent settlement at the mouth of the river Plate at Buenos Aires dates from 1580.

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  • The tallest statures are on the plains in both Americas.

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  • By a treaty of 1822, which extinguished the Mahratta right to levy chauth, the Wardha river was fixed as the eastern boundary of Berar, the Melghat and adjoining districts in the plains being assigned to the nizam in exchange for the districts east of the Wardha held by the peshwa.

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  • Between the higher ranges are many fertile plains and low hilly districts, well watered but comparatively little cultivated in consequence of intertribal feuds.

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  • Formerly these beautiful antelopes existed in countless numbers on the plains of South Africa, and were in the habit of migrating in droves which completely filled entire valleys.

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  • Large faceglands are characteristic of the species, which inhabits the open plains of India in large herds.

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  • The plains from which the hills take their rise are only 300 ft.

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  • None of them is navigable in the mountain valleys; but the Tista, after it debouches on the plains, can be navigated by cargo boats of considerable burthen.

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  • Bears, leopards and musk deer are found on the higher mountains, deer on the lower ranges, and a few elephants and tigers on the slopes nearest to the plains.

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  • Both of these plains are so level, and have so fertile a soil that they are the seats of extensive agriculture, especially fruit raising, which is further encouraged by the influence of the large bodies of lake water that moderate the heat of summer and the cold of winter, and tend to check the late frosts of spring and the early frosts of autumn.

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  • Of these the most notable is the Niagara escarpment which extends eastward from Canada, past Lewiston and Lockport, - a downward step from the Erie to the Ontario plain, where the Niagara limestone outcrops, and its resistance to denudation accounts for the steeply rising face at the boundary between the two plains.

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  • Thus there is here a gap, easily traversed, across the Appalachian mountains and plateaus to the more level and fertile plains beyond.

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  • Iii the absence of extensive alluvial plains and marshes, there is little malaria.

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  • Washington prepared to withstand the British behind fortifications on Harlem Heights, but discovering that Howe was attempting to outflank him by landing troops in the rear he retreated to the mainland, leaving only a garrison at Fort Washington, and established a line of fortified camps on the hills overlooking the Bronx river as far as White Plains.

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  • This brought on the battle of White Plains late in October, in which Howe gained no advantage; and from here both armies withdrew into New Jersey, the British capturing Fort Washington on the way, the Americans leaving behind garrisons to guard the Highlands of the Hudson.

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  • In South Island there are hot pools and a state sanatorium at Hanmer Plains.

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  • The coast plains extend inland about 40 m.

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  • The aspect of the greater part of the country is that of vast undulating treeless plains, diversified by low rands and isolated tafelbergs and spitzkops, indicating the former level of the country.

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  • A remarkable feature of the western plains is the large number of salt pans and salt springs grouped together in extensive areas, especially in the Boshof district.

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  • Over the greater part of the plains little now grows save veld, the coarse long grass of South Africa.

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  • Thorny acacias, euphorbias and aloes are still, however, found in patches on the plains.

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  • The elephant, giraffe, lion, leopard, hyena, zebra, buffalo, gnu, quagga, kudu, eland and many other kinds of antelope roamed the plains; the rhinoceros, hippopotamus and crocodile lived in or frequented the rivers, and ostriches and baboons were numerous.

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  • The dry western plains are best adapted for sheep rearing, while the well-watered eastern regions are specially suitable for the growing of cereals and;also for horse breeding.

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  • The valleys of the principal streams are deeply eroded; bluffs are common along their borders, and buttes elsewhere on the plains.

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  • In the Great Plains region the geological structure is very simple, consisting of nearly horizontal strata of Cretaceous rock in the middle and western portions, and of Tertiary rock on the eastern border, but in the mountain region the rocks have been folded and faulted until the structure is intricate and obscure.

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  • The bison, which once ranged the plains in large herds, have been exterminated; the moose and the elk are found only occasionally in the wilder regions; mountain sheep, antelope, black and grizzly bears, wolves, coyotes and lynx (" wild cats ") are also becoming rare.

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  • The Great Plains are covered for the most part only with bunch grass which grows in tufts, leaving the ground visible between, and except in May and June presents a yellow and withered appearance.

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  • The climate is generally dry, although less so on the mountains and in the Flathead river basin than on the Great Plains, and is subject to sudden changes and to great extremes of temperature; but the temperature varies more than the amount of precipitation.

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  • The amount of precipitation is greater in the north-west and on the mountains, because in the one case the mountains of lower elevation are a less obstruction to the moisturebearing winds from the west, and in the other the mountains condense the moisture; the mountains which stand in isolated groups upon the plains are frequently in summer the focus of local thunder showers.

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  • The coal underlying the east half of the state, the " Great Plains," is lignitic and of inferior quality, but that in the mountain districts is bituminous and generally suitable for coking.

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  • Clowes; The Rough Riders (1899); Oliver Cromwell (1901); the following works on hunting and natural history, Hunting Trips of a Ranchman (1886), Ranch Life and Hunting Trail (1888), The Wilderness Hunter (1893), Big Game Hunting in the Rockies and on the Plains (1899; a republication of Hinting Trips of a Ranchman and The Wilderness Hunter), The Deer Family (1902), with other authors, and African Game Trails (1910); and the essays, American Ideals (2 vols., 1897) and The Strenuous Life (1900); and State Papers and Addresses (1905) and African and European Addresses (1910).

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  • Game is fairly abundant; hares and partridges are found in the plains to the north-west, capercailzie in the neighbourhood of Tharandt and Schwarzenberg, and deer in the forests near Dresden.

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  • They are most abundant in the plains of northern Italy traversed by the Po and its tributaries, though similar constructions have been found in Hungary in the valley of the Theiss.

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  • With the exception of the Black Hills district in the south-west, the state is a wide rolling plain, with its eastern portion a part of the Prairie Plains region, and its western portion a part of the Great Plains.

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  • Along the west boundary of the state the general elevation of the Great Plains is about 3500 ft.

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  • The plains, except in the south-east corner, are underlaid by sheets of water-bearing sandstone, which carry a volume of water under such pressure that in the valleys of the James river and the Missouri river and its western tributaries a strong surface flow may be obtained from artesian wells.

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  • The larger valleys of the Black Hills district contain fertile alluvial deposits washed from the neighbouring highlands, but in the plains adjoining these mountains the soils consist of a stiff gumbo suitable only for pasture land.

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  • The Appalachian belt includes, with the ranges enumerated above, the plateaus sloping southward to the Atlantic Ocean in New England, and south-eastward to the border of the coastal plain through the central and southern Atlantic states; and on the north-west, the Allegheny and Cumberland plateaus declining toward the Great Lakes and the interior plains.

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  • North Dakota lies in the Prairie Plains and Great Plains physiographic provinces.

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  • The lowest of these plains is the valley of the Red river, and this valley extends along the eastern edge of the state and varies in width from 25 to 70 m.

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  • East of the Missouri river this region is covered with glacial drift, and is noticeably different from the more level lands of the lower plains.

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  • The billowy plains still remain in places, but in the vicinity of streams the billows give way to deep ravines.

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  • The morainic belts and other obstructions in the drift plains hem in the waters in the intervening basins and create what are called " glacial lakes," var y ing in diameter from a few yards to several miles.

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  • The drift plains also contain numerous shallow hollows, locally termed " pots and kettles," which receive the drainage of their vicinity and form sloughs.

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  • The inhabitable part of the land consists 'of the lower slopes of the range with the valleys and small alluvial plains which lie between its spurs.

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  • It appears to be composed chiefly of Palaeozoic rocks, concealed, in the plains, by Quaternary, and possibly Tertiary, deposits.

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  • Among the chief productions of the plains are rice (the staple export of the country); pepper (chiefly from Chantabun); sirih, sago, sugar-cane, coco-nut and betel, Palmyra or sugar and attap palms; many forms of banana and other fruit, such as durian, orange-pommelo, guava, bread-fruit, mango, jack fruit, pine-apple, custard-apple and mangosteen.

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  • These terminal lakes, or more accurately sedimentary plains, are therefore almost always dry."

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  • The population of Cartagena 'is largely composed of blacks and mixed races, which form the predominant type on the lowland plains of northern Colombia.

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  • With the exception of these sandy plains the country is heavily forested, even the mountain sides being covered with vegetation to their summits.

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  • Richly wooded hollows and extensive plains are interspersed between the hills.

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  • Some of the plains afford good pasturage for camels, asses, goats and cattle; others are desert tablelands.

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  • South of these ranges lie fertile and well-watered plains and lowlands extending to the borders of Austria, Hungary and Rumania.

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  • With the exception of plains in the neighbourhood of Kwei-yang Fu, Ta-ting Fu, and Tsun-i Fu, in the central and northern regions, the province may be described as mountainous.

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  • The valleys towards the Black Sea abound in fruit trees of all kinds, while the valley of the Sangarius and the plains near Brusa and Isnik (Nicaea) are fertile and well cultivated.

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  • Another grass, Lygeum Spartum, with stiff rush-like leaves, growing in rocky soil on the high plains of countries bordering on the Mediterranean, especially of Spain and Algeria, is also a source of esparto.

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  • The western half is bordered by a hilly rampart, broken only here and there, in the bays where the larger streams find their outlet, by flat and sandy plains.

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  • It is a mountainous country intersected with rocky canons and fertile valleys, which occasionally broaden out into alluvial plains like that of the Shelif, or the Metija near Algiers, or those in the neighbourhood of Oran and Bona.

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  • Behind the Tell is a lofty table-land with an average elevation of 3000 ft., consisting of vast plains, for the most part arid or covered with esparto grass, in the depressions of which are great salt lakes and swamps (Arabic, shats) fed by streams which can find no outlet to the sea through the encircling hills.

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  • The Jurjura range, forming the background of the plains between Algiers and Bougie, extends through the district of Kabylia, with which for grandeur of scenery no other part of Algeria can compare.

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  • The Kabyles, a division of the Berbers, occupy chiefly the more mountainous parts of the Tell, but some live in the plains and valleys.

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  • The lands of the state - other than woods and forests - but especially the barren lands and brushwoods situated in the plains, were offered for colonization, to be disposed of (I) by sale at a fixed price, (2) by auction, and (3), in certain cases, by agreement.

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  • On the 23rd of December 1847 Abd-el-Kader surrendered to General Lamoriciere in the plains of Sidi-Brahim.

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  • This region, very fertile in the valleys and enjoying a cooler and damper climate than the lower plains, is densely populated, and agriculture and cattle-breeding are carried on extensively.

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  • The so-called Dard races are referred to by Pliny and Ptolemy, and are supposed to be a people of Aryan origin who ascended the Indus valley from the plains of the Punjab, reaching as far north as Chitral, where they dispossessed the Khos.

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  • One is supposed to have lived in the forests along the stream borders, and the other in the open plains.

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  • The analysis of continental faunas into those inhabiting rivers, lowlands, forests, plains or uplands, affords a key to physiographic conditions all through the Tertiary.

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  • Descending to the lowlands on either side of the plateau, the temperature rises steadily until the upper limit of the tropical region, called tierras calientes, is reached, where the climate is hot, humid and unhealthy, as elsewhere in the forested coastal plains of tropical America.

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  • The jaguar and puma have found their way into the United States, while the wolf, coyote, bear and beaver have gone far southward on the plateau, and the buffalo was once found in large numbers on its more favoured northern plains.

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  • These widely divergent conditions give to Mexico a flora that includes the genera and species characteristic of nearly all the zones of plant life on the western continents - the tropical jungle of the humid coastal plains with its rare cabinet-woods, dye-woods, lianas and palms; the semi-tropical and temperate mountain slopes where oak forests are to be found and wheat supplants cotton and sugar-cane; and above these the region of pine forests and pasture lands.

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  • The rainy season completely changes the appearance of these plains, new grass appears, and wheat and Indian corn are cultivated.

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  • The " higuerilla or castor-oil plant (Ricinus communis) is widely distributed throughout the plateau and the open plains of the lower zones.

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  • The unhealthfulness of the coastal plains prevents their being thickly populated, although Vera Cruz and some other states return a large population.

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  • A fertile soil, abundant rainfall and high temperatures have covered these mountain slopes and lowland plains with a wealth of vegetation.

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  • In Yucatan the open plains, rich pasture, and comparative freedom from moist heat, insects and vampire bats, have been particularly favourable to cattle-raising, and the animals are generally rated among the best in Mexico.

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  • Delaying until the 12th of October, Howe again moved forward by water into Westchester county, and marching toward White Plains forced another retreat on Washington.

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  • In the fight on Chatterton Hill at the Plains, on the 28th of October, an American brigade was defeated.

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  • Swine, which are reared in great numbers in the plains, yield the famous Westphalian hams; and the rearing of cattle and goats is important.

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  • Ranging from Canada in the north to Guatemala in the south, and chiefly frequenting the open plains on both sides of the chain of the Rocky Mountains, the coyote, under all its various local phases, is a smaller animal than the true wolf, and may apparently be regarded as the New World representative of the jackals, or perhaps, like the Indian wolf (C. pallipes), as a type intermediate between wolves and jackals.

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  • Cattle-farming is carried on in the high pasturelands and the plains of Peten; but the whole number of sheep (77, 000 in 1900) and pigs (30,000) in the republic is inferior to the number kept in many single English counties.

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  • Between the two mountain systems extends a great central area of plains, stretching from the Gulf of Mexico northward, far beyond the national boundary, to the Arctic Ocean.

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  • The central plains are divided by a hardly perceptible height of land into a Canadian and a United States portion; from the latter the great Mississippi system discharges southward to the Gulf of Mexico.

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  • The upper Mississippi and some of the Ohio basin is the prairie region, with trees originally only along the watercourses; the uplands towards the Appalachians were included in the great eastern forested area; the western part of the plains has so dry a climate that its herbage is scanty, and in the south it is barren.

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  • The frontier was then swiftly carried across the eastern half of the central plains, but found a second delay in its advance occasioned by the dry climate of the western plains.

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  • It was chiefly the mineral wealth of the Cordilleran region, first developed on the far Pacific slope, and later in many parts of the inner mountain ranges, that urged pioneers across the dry plains into the apparently inhospitable mountain region; there the adventurous new-corners rapidly worked out one mining district after another, exhausting and abandoning the smaller camps to early decay and rushing in feverish excitement to new-found river fields, but establishing important centres of varied industries in the more important mining districts.

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  • The area of the United States may be roughly divided into the Appalachian belt, the Cordilleras and the central plains, as already indicated.

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  • Heavy terminal moraines and outwashed fluviatile plains have been laid on the cuesta remnants, increasing their height as much as 100 ft.

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  • I-fence this district may be placed in the class of ancient coastal plains.

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  • As is always the case in the broad denudation of the gently inclined strata of such plains, the weaker layers are worn down in sub-parallel belts of lower land between the oldiand and the belts of more resistant strata, which rise in uplands.

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  • The Prairie States.The originally treeless prairies of the upper Mississippi basin began in Indiana and extended westward and north-westward until they merged with the drier region described Leyond as the Great Plains.

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  • The great advance in the interpretation of land forms now makes it possible to introduce as thoroughly explanatory a description of these fertile plains as of forms earlier familiar, such as sand dunes, deltas and sea cliffs.

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  • The greatest area of the prairies, from Indiana to North Dakota, consists of till plains, that is, sheets of unstratified drift, 30, 50 or even 100 ft.

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  • The till plains, although sweeping in broad swells of slowly changing altitude, are often level to the eye, and the view across them stretches to the horizon, unless interrupted by groves of trees along the watercourses, or by belts of low morainic hills.

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  • The great ice sheets formed terminal moraines around their border at various halting stages; but the morainic belts are of small relief in comparison to the great area of the ice; they rise gently from the till plains to a height of 50, 100 or more feet; they may be one, two or three miles wide; and their hilly surface, dotted over with boulders, contains many small lakes in basins or hollows, instead of streams in valleys.

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  • The moraines are of too small relief to be shown on any maps but those of the largest scale; yet small as they are, they are the chief relief of the prairie states, and, in association with the nearly imperceptible slopes of the till plains, they determine the course of many streams and rivers, which as a whole are consequent upon the surface form of the glacial deposits.

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  • Later when the ice retreated farther and the unloaded streams returned to their earlier degrading habit, they more or less completely scoured out the valley deposits, the remains of which are now seen in terraces on either side of the present flood plains.

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  • The best explanation suggested for bess is that, during certain phases of the glacial period, it was carried as dust by the winds from the flood plains of aggrading rivers, and slowly deposited on the neighboring grass-covered plains.

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  • A broad, low crustal arch extends southward at the junction of the Atlantic and Gulf coastal plains; the emerged half of the arch, constitutes the visible lowland peninsula of Florida; the submerged half extends westward under the shallow Florida.

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  • Near the Colorado river the dissected cuesta of the Grand Prairie passes southward, by a change to a more nearly horizontal structure, into the dissected Edwards plateau (to be referred to again as part of the Great Plains), which terminates in a maturely dissected fault scarp, 300 or 400 ft.

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  • This is the province of the Great Plains.

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  • Although the altitude of plains increases gradually from,6oo or 1200 ft.

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  • The plains are by no means a simple unit; they are of diverse structure and of various stages of erosional development.

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  • The western boundary of the plains is usually well defined by the abrupt ascent of the mountains.

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  • The eastern boundary of the plains is more climatic than topographic. The line of 20 in.

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  • The plains may be described in northern, intermediate, central and southern sections, in relation to certain peculiar features.

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  • The northern section of the Great Plains, north of latitude 44, including eastern Montana, north-eastern Wyoming and most of the Dakotas, is a moderately dissected peneplain, one of the best examples of its class.

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  • The helicopter ride was demonstrating the widespread erosion of the surrounding plains.

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  • This peculiar feature is explained as the result of displacement of the river from a better graded preglacial valley by the Pleistocene ice-sheet, which here overspread the plains from the moderately elevated Canadian highlands far on the north-east, instead of from the much higher mountains near by on the west.

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  • The present altitude of the plains near the mountain base is 4000 ft.

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  • The northern plains are interrupted by several small mountain areas.

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  • This mountain mass is of flat-arched, dome-like structure, now well dissected by radiating consequent streams, so that the weaker uppermost strata have been eroded down to the level of the plains where their upturned edges are evenly truncated, and the next following harder strata have been sufficiently eroded to disclose the core of underlying crystalline rocks in about half of the domed area.

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  • The central section of the Great Plains, between latitudes 42 and 36, occupying eastern Colorado and western Kansas, is, briefly stated, for the most part a dissected fluviatile plain; that is, this section was once smoothly covered with a gently sloping plain of gravel and sand that had been spread far forward on a broad denuded area as a piedmont deposit by the rivers which issued from the mountains; and since then it has been more or less dissected by the erosion of valleys.

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  • The central section of the plains thus presents a marked contrast to the northern section; for while the northern section owes its smoothness to the removal of local gravels and sands from a formerly uneven surface by the action of degrading rivers and their inflowing tributaries, the southern section owes its smoothness to the deposition of imported gravels and sands upon a previously I uneven surface by the action of aggrading rivers and their outgoing distributaries.

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  • The Llano is separated from the plains on the north by the mature consequent valley of the Canadian river, and from the mountains on the west by the broad and probably mature valley of the Pecos river.

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  • The central denuded area, east of the Llano, resembles the east-central section of the plains in exposing older rocks; between these two similar areas, in the space limited by the Canadian and Red rivers.

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  • The Cordilleran Region.From the western border of the Great Plains to the Pacific coast, there is a vast elevated area, occupied by mountains, plateaus and intermont plains.

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  • The intermont plains are at all altitudes from sea-level to 4000 ft.; the plateaus from 5000 to 10,000 ft.; and the mountains from 8000 to 14,000 ft.

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  • As far north as the gorge of the Missouri river in Montana, the Front range, facing the Great Plains, is a rather simple uplift, usually formed by upturning the flanking strata, less often by a fracture.

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  • Along the eastern side of the Front Range in Colorado most of the upturned stratified formations have been so well worn down that, except for a few low piedmont ridges, their even surface may now be included with that of the plains, and the crystalline core of the range is exposed almost to the mountain base.

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  • Here the streams that drain the higher areas descend to the plains through narrow canyons in the mountain border, impassable for ordinary roads and difficult of entrance even by railways; a well-known example is the gorge of Clear Creek east of the Georgetown mining district.

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  • Farther north in Montana, beyond the gorge of the Missouri river, the structure of the Front Range is altogether different; it is here the carved residual of a great mass of moderately bent Palaeozoic strata, overthrust eastward upon the Mesozoic strata of the plains; instead of exposing the oldest rocks along the axis and the youngest rocks low down on the flanks, the younger rocks of the northern range follow its axis, and the oldest rocks outcrop along its eastern flanks, where they override the much younger strata of the plains; the harder strata, instead of lapping on the mountain flanks in great slab-like masses, as in the Bighorns, form out-facing scarps, which retreat into the mountain interior where they are cut down by outfiowing streams.

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  • In this central region, however, it is only by way of exception that the cirques were so far enlarged by retrogressive glacial erosion as to sharpen the preglacial dome-like summits into acute peaks; and in no case did glacial action here extend down to the plains at the eastern base of the mountains; but the widened, trough-like glaciated valleys frequently descend to the level of the elevated intermont basins, where moraines were deployed forward on the basin floor.

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  • The Lararnie Plains and the Green river basin, essentially a single structural basic between the east-west ranges of Rattlesnake Mountains on the north and the Uinta Range on the south, measuring roughly 260 m.

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  • The lava plains of the Columbia basin are among the most extensive volcanic outpourings in the world.

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  • Thus the uplifted, dislocated and dissected lava sheets of the Yellowstone National Park in the Rocky Mountains on the east (about the headwaters of the Snake river) are associated with the older lavas,of the Columbian plains.

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  • The Columbia river has entrenched itself in a canyon-like valley around the northern and Western side of the lava plains; Snake river has cut a deeper canyon farther south-east where the plains are higher and has disclosed the many lava sheets which build up the plains, occasionally revealing a buried mountain in which the superposed river has cut an even narrower canyon.

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  • One of the most remarkable features of this province is seen in the temporary course taken by the Columbia river across the plains, while its canyon was obstructed by Pleistocene glaciers that came from the Cascade Mountains on the north-west.

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  • The lava plains are treeless and for the most part too dry for agriculture; but they support many cattle and horses.

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  • Along parts of their eastern border, where the rainfall is a little increased by the approach of the westerly winds to the Rocky Mountains, there is a belt of very deep, impalpably fine soil, supposed to be a dust deposit brought from the drier parts of the plains farther west; excellent crops of wheat are here raised.

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  • In the Great Plains and farther west the Silurian has little known representation.

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  • It is absent from the Great Plains, so far as now known, and is not generally present in the Rocky Mountains, though somewhat widespread between them and the western coast.

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  • In the western plains and in the western mountains the Triassic is not clearly separated from the Permian in most places.

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  • The Comanchean formations are found (I) on the inland border of the coastal plain of the Atlantic (Potomac series) and Gulf coasts (Tuscaloosa series at the east and Comanchean at the west); (2) along the western margin of the Great Plains and in the adjacent mountains; and (3) along the Pacific coast west of the Sierras.

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  • It is found (1) on the Atlantic coastal plain, where it laps up on the Comanchean, or over it to older formations beyond its inland margin; (2) on the coastal plain of the Gulf region in similar relations; (3) over the western plains; (4) in the western mountains; and (5) along the Pacific coast.

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  • The distribution of the beds of marine origin shows that the sea crept upon the eastern and southern borders of the continent auring the period, covered the western plains, and formed a great mediterranean sea between the eastern and western lands of the continent, connecting the Gulf of Mexico on the south and the Arctic Ocean on the north.

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  • In the western plains, the first and last principal subdivisions of the system (Dakota and I,aramie) are almost wholly non-marine.

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  • They are widely distributed in the western mountains and, on the Great Plains.