Great progress has been made in the scientific mapping of the islands.
The " wild-cat " wells, sunk by speculators on untested territory or on lands which had not previously proved productive, played an important part in the earlier mapping out of the petroleum fields.
The task of mapping the coast was largely undertaken by officers of the Indian navy, while the first explorers of the interior were officers of the Indian army quartered at Aden - Lieut.
By a skilful division of labour, and by the erection of numerous observing stations, the mapping out of the whole coast proceeded simultaneously under the eye of the general director, and in addition a vast mass of magnetic and meteorological observations was collected.
For the mapping of the whole vast interior, except in rare cases, no data exist beyond the itineraries of explorers, travelling as a rule under conditions which precluded the use of even the simplest surveying instruments.
After mapping Danmark Fjord he and Iversen returned S.
The discovery and mapping of America are illustrated by F.
The Russian-Afghan Boundary Commission of 1884-1886 resulted in the delimitation and mapping of the northern frontier.
Pike, mapping the Arkansas and Red rivers of the Louisiana Territory for the government of the United States, followed the Arkansas into Colorado, incidentally discovering the famous peak that bears his name.
In recent times photography has been so successfully applied to the mapping of our satellites as nearly to supersede visual observation.
In 1887 the gunboat made a more extended voyage, reaching the port of Timbuktu, and correcting the mapping of the river down to that point.
Messrs Talbot and Claud Alexander surveyed the country between Ibi on the Benue and Lake Chad, mapping (1904) a considerable part of the Gongola.'
Geographical latitude, which is used in mapping, is based on the supposition that the earth is an elliptic spheroid of known compression, and is the angle which the normal to this spheroid makes with the equator.
The accurate mapping of the lake was mainly the work of British officials and travellers, such as Scott Elliott, Sir F.
In the later mapping out of the empire into purely military divisions, the theme (O a) of Sicily took in both the island and the nearest peninsula of the mainland, the oldest Italy.
Zof° E., mapping the glaciers which descended from a plateau rising above 3,000 ft., as well as several islands off the coast.
Imagine they also included their genetic mapping as well as every single thing they did in their daily lives.
The absence of setae and the great secondary annulation render the mapping of the segments a subject of some difficulty.
Captain George Vancouver (1758-1798), in charge of a British exploring expedition then engaged in mapping the coast (1792-1794), was sceptical of the existence of the river, but Captain Gray, undiscouraged, persisted in the search and on the 11th of May 1792 anchored in the river which he named Columbia in honour of his ship. The later claim of the United States to all the territory drained by the river was based chiefly upon this discovery by Captain Gray, who had succeeded where Spanish and British had failed.
The mapping of Tanganyika, which long rested on the surveys of Mr E.