Coloration sentence examples

coloration
  • Shenstone, two classes are to be recognized: (I) Nataloins, which yield picric and oxalic acids with nitric acid, and do not give a red coloration with nitric acid; and (2) Barbaloins, which yield aloetic acid, C7H2N205, chrysammic acid, C 7 H 2 N 2 0 6, picric and oxalic acids with nitric acid, being reddened by this reagent.

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  • indicus, the largest of the genus, from the Malay Peninsula (as far north as Tavoy and Mergui), Sumatra and Borneo, distinguished by its peculiar coloration, the head, neck, fore and hind limbs being glossy black, and the intermediate part of the body white, the height at the shoulder from 3 ft.

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  • The coloration is mostly beautiful, black and red.

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  • Detection and Estimation.-Most calcium compounds, especially when moistened with hydrochloric acid, impart an orange-red colour to a Bunsen flame, which when viewed through green glass appears to be finch-green; this distinguishes it in the presence of strontium, whose crimson coloration is apt to mask the orange-red calcium flame (when viewed through green glass the strontium flame appears to be a very faint yellow).

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  • EYRA (Felis eyra), a South American wild cat, of weasel-like build, and uniform coloration, varying in different individuals from reddish-yellow to chestnut.

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  • On this and other accounts the coloration of the sky is highly variable.

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  • c. antiquorum, are characterized by the large frontal horn of the bulls, the white legs, the network type of coloration and the pale tint.

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  • A blue coloration indicates nitrogen, and is due to the formation of potassium (or sodium) cyanide during the fusion, and subsequent interaction with the iron salts.

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  • The molybdates may be recognized by the fact that they give a white precipitate on the addition of hydrochloric or nitric acids to their solutions, and that with reducing agents (zinc and sulphuric acid) they give generally a blue coloration which turns to a green and finally to a brown colour.

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  • Sodium is most distinctly recognized by the yellow coloration which volatile salts impart to a Bunsen flame, or, better, by its emission spectrum which has a line (double), the Fraunhofer D, line, in the yellow (the wave-lengths are 5896 and 5890).

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  • Similar instances of protective coloration could be cited without end.

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  • With ferric chloride it gives a violet coloration, and with bromine water a white precipitate of tribromphenol.

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  • The success of procryptic coloration depends, however, very largely upon stillness, and the instinct to keep stationary without moving a limb is a marked characteristic of all spiders unless engaged in hunting or fleeing from imminent danger.

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  • It crystallizes in prisms which melt at 36° C. and boil at 201 0.8 C. It is soluble in water, and the aqueous solution gives a blue coloration with ferric chloride.

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  • laevis, the "smooth snake" of Europe, in England, in Hampshire and Dorsetshire, eats chiefly lizards; owing to its coloration, which varies much, it is often mistaken for the viper.

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  • Analysis, &c. - All volatile potassium compounds impart a violet coloration to the Bunsen flame, which is masked, however, if sodium be present.

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  • It will not thrive in rivers; in large ponds it readily reverts to the coloration of the original wild stock.

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  • They present great diversities of size, length and thickness of fur, and coloration, although resembling each other in all important structural characters.

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  • Ammonia and ammonium salts can be readily detected, in very minute traces, by the addition of Nessler's solution, which gives a distinct yellow coloration in the presence of the least trace of ammonia or ammonium salts.

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  • They form many double salts and give a dark violet coloration with ferric chloride solution, this colour, however, gradually disappearing on standing, sulphur being precipitated.

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  • colias, which is distinguished by a somewhat different pattern of coloration, the transverse black bands of the common mackerel being in this species narrower, more irregular or partly broken up into spots, while the scales of the pectoral region are larger, and the snout is longer and more pointed.

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  • Some of the species of Aviculariidae also appear to be warningly coloured with black or black and red, and their coloration is associated with the urticating nature of their bristles, which makes them highly unpalatable to vertebrate foes.

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  • Hence as a very general rule the coloration makes for concealment under natural conditions of existence, and the instincts which lead to concealment are very highly developed.

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  • As instances of procryptic or celative coloration may be mentioned that of the species of the genus Dolomedes, one of the Lycosidae, which lives amongst reeds and is marked with a pair of longitudinal yellow lines which harmonize with the upright stalks of the vegetation, and Lycosa pitta, which lives on the sand, can scarcely be seen on account of its mottled pattern: Sparassus smargdulus and the species of Pecucetia, which are found amongst grass or low green herbage, are mostly green in colour, and Salticus scenicus is banded with white and black to match the grey tint of the rocks and stone walls on which it hunts its prey.

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  • The extent to which procryptic coloration and instincts favouring concealment are developed indicates that generation after generation spiders have been subjected to persecution from enemies.

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  • For example, when a solution of a ferric salt is added to a solution of potassium thiocyanate, a deep red coloration is produced, owing to the formation of ferric thiocyanate.

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  • Another type of dry reaction, namely, the flame coloration, had been the subject of isolated notices, as, for example, the violet flame of potassium and the orange flame of sodium observed by Marggraf and Scheele, but a systematic account was wanting until Cartmell took the subject up. His results (Phil.

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  • The flame coloration may give information as to which elements are present.

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  • In the second group, we may notice the application of litmus, methyl orange or phenolphthalein in alkalimetry, when the acid or alkaline character of the solution commands the colour which it exhibits; starch paste, which forms a blue compound with free iodine in iodometry; potassium chromate, which forms red silver chromate after all the hydrochloric acid is precipitated in solutions of chlorides; and in the estimation of ferric compounds by potassium bichromate, the indicator, potassium ferricyanide, is placed in drops on a porcelain plate, and the end of the reaction is shown by the absence of a blue coloration when a drop of the test solution is brought into contact with it.

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  • Beilstein determines their presence by heating the substance with pure copper oxide on a platinum wire in the Bunsen flame; a green coloration is observed if halogens be present.

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  • Sulphur is detected by heating the substance with sodium, dissolving the product in water, and adding sodium nitroprusside; a bluish-violet coloration indicates sulphur.

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  • The coat is shaggy and oily, and is preferred with as little white as possible, but the general black coloration may have rusty shades.

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  • The reagents in common use are: Millon's reagent, a solution of mercuric nitrate containing nitrous acid, this gives a violet-red coloration; nitric acid, which gives a yellow colour, turning to gold when treated with ammonia (xanthoproteic reaction); fuming sulphuric acid, which gives violet solutions; and caustic potash and copper sulphate, which, on warming, gives a red to violet coloration (biuret reaction).

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  • von Wrangel); the various coloration of many animals according to the composition of the forests they inhabit (the sable and the squirrel are well-known instances); the intermingling northern and southern faunas in the Amur region and the remarkable consequences of that intermixture in the struggle for existence; - all these render the study of the Siberian fauna most interesting.

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  • In coloration it bears some resemblance to a chaffinch, but its much larger size and enormous beak make it easily recognizable, while on closer inspection the singular bull-hook form of some of its wing-feathers will be found to be very remarkable.

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  • It is volatile (para-oxybenzaldehyde is not) and gives a violet coloration with ferric chloride.

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  • Both the two former are iron-grey on the upper parts, and black below, a style of coloration rare among mammals, as the upper side of the body is in the great majority darker than the lower.

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  • This, when adult, is readily distinguishable from the ordinary bird by the absence of the blush from its plumage, and by the curled feathers that project from and overhang each side of the head, which with some difference of coloration of the bill, pouch, bare skin round the eyes and irides give it a wholly distinct expression.

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  • It is a colourless oily liquid which boils at 225°-227° C., is somewhat soluble in water, and does not give a coloration with ferric chloride.

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  • Owing to impurities contained in the materials from which glasses are made, accidental coloration or discoloration is often produced.

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  • For currants and raisins, both produced by varieties of the grape-vine, see the respective articles.] Apart from their economic value, vines are often cultivated for purely ornamental purposes, owing to the elegance of their foliage, the rich coloration they assume, the shade they afford, and their hardihood.

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  • The coloration is generally sombre, but to this there are exceptions; the fruit-bats are brownish yellow or russet on the under surface; two South American species are white; Blainville's chin-leafed bat is bright orange; and the Indian painted bat (Cerivoula pieta) with its deep orange dress, spotted with black on the wing-membranes, has reminded observers of a large butterfly.

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  • The coloration of tsetse-flies is sombre and inconspicuous; the brownish or greyish-brown thorax usually exhibits darker longitudinal markings, and when the insect is at rest the abdomen or hinder half of the body is entirely concealed by the brownish wings.

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  • Their coloration consists often of bright hues, and sometimes resembles that of their surroundings.

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  • Its coloration varies from pale golden brown to black; the scales are smooth and shiny.

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  • American genus Urotheca bear an extraordinary resemblance in coloration to the pretty, black, red and yellow poisonous Elaps.

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  • A still more remarkable resemblance exists in the shape and striking, red, black and yellow coloration between Scolecophis aemulus of Chihuahua and the poisonous Elaps fulvius, the American coral-snake, but Cope has been careful to point out that these two creatures are not known to inhabit the same district.

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  • A more delicate method consists in adding a very little anthraquinone and sodium amalgam; absolute alcohol gives a green coloration, but in the presence of minute traces of water a red coloration appears.

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  • Traces of bismuth may be detected by treating the solution with excess of tartaric acid, potash and stannous chloride, a precipitate or dark coloration of bismuth oxide being formed even when only one part of bismuth is present in 20,000 of water.

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  • Butterflies, moths and bees are very abundant, the former being remarkable for their size and splendid coloration; but these groups have not been investigated exhaustively enough to afford a correct idea of their number or their true affinities.

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  • 2 More extraordinary than this, from one point of view, is the great variety of coloration that obtains in these temporary outgrowths.

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  • The Atlantic flora has also numerous oaks and maples, signalized by their autumnal coloration.

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  • We have homely genera, even among the true Passeres, occurring there - such as Alauda, Acrocephalus, Motacilla and Pratincola, while the Cisticola madagascariensis is only distinguishable from the well-known fan-tailed warbler, C. schoenicola of Europe, Africa and India by its rather darker coloration.

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  • colias, and well characterized by their dentition and coloration.

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  • They are called " stainers " because their excrement is yellow and stains the fibre; also if crushed during the process of ginning they give the cotton a reddish coloration.

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  • pendulous ears, out-turned feet and generally black-and-tan coloration.

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  • coeruleus), the "krait" of Bengal, possesses a dull and more uniform coloration.

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  • almost black, coloration.

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  • The general or typical coloration is, however, a rich tan upon the head, neck, body, outside of legs, and tail near the root.

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  • Iodine can be readily detected by the characteristic blue coloration that it immediately gives with starch paste; the colour is destroyed on heating, but returns on cooling provided the heating has not been too prolonged.

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  • With a pure ferric salt it only gives a brown coloration.

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  • It crystallizes in dark red prisms which are readily soluble in water; it is a valuable reagent for the detection of sulphur, this element when in the form of an alkaline sulphide giving a characteristic purple blue coloration with the nitroprusside.

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  • It is basic in character, and gives a red coloration on the addition of ferric chloride.

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  • The charm of the Orkneys does not lie in their ordinary physical features, so much as in beautiful atmospheric effects, extraordinary examples of light and shade, and rich coloration of cliff and sea.

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  • FULMAR, from the Gaelic Fulmaire, the Fulmarus glacialis of modern ornithologists, one of the largest of the petrels (Procellariidae) of the northern hemisphere, being about the size of the common gull (Larus canus) and not unlike it in general coloration, except thatits primaries are grey instead of black.

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  • Chromic acid and its salts, the chromates and bichromates, can be detected by the violet coloration which they give on addition of hydrogen peroxide to their dilute acid solution, or by the fact that on distillation with concentrated sulphuric acid and an alkaline chloride, the red vapours of chromium oxychloride are produced.

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  • [M.] melanotis) of the Great Plains, which differs from the third only by its shorter ears and richer coloration.

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  • It is a large rodent known to the Tupi Indians as the paca-rana, or false paca, in allusion to the resemblance of its coloration to that of the true paca, from which it differs by its elldeveloped tail, the absence of cheek-pouches, the full development of all five toes and the wider thorax.

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  • There can be scarcely any doubt as to the propriety of considering this genus the type of a separate family of Psittaci; but whether it stands alone or some other forms (Pezoporus or Geopsittacus, for example, which in coloration and habits present some curious analogies) should be placed with it, must await future determination.

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  • It has recently been ascertained that the coloration of certain sponges is due to the interaction of an oxydizing ferment, tyrosinase, upon certain colourless chromogenic substances.

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  • A very distinct species (P. murina), remarkable for its dull coloration, is peculiar to the Azores, and several others are found in Asia from the Himalayas to Japan.

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  • Now insects that possess noxious attributes, and the same is true of other animals, usually have a conspicuous warning coloration which appeals to the eyes of enemies and helps them to remember more easily the cause of an unpleasant experience, helps in fact to establish a psychical association between a particular style of coloration and a nasty taste or a painful wound.

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  • Similarly the dull coloration of the two sets of animals is very possibly procryptic and serves to hide both shrews and squirrels from enemies.

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  • The Tylas has departed from the normal coloration of its group to take on that of the shrike, a comparatively powerful and pugnacious bird.

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  • In the Philippines, a cricket (Scepastus pachyrhynchoides), has taken on the shape and coloration of a species of Apocyrtus, a hard and inedible weevil (Curculionidae); and Phoraspis, a kind of grasshopper similarly resembles ladybirds (Coccinellidae).

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  • A species of beetle (Caria dilatator) of this family in Borneo is mimicked by a species of a genus allied to Gammarotettix not only in shape and coloration but also in the habit of remaining still when disturbed.

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  • Finally the larva of one of the Bornean Mantidae, which is a floral simulator in its pupal and adult stages, closely resembles in its black and red coloration the larva of the stinking and warningly coloured bug Eulyes amoena.

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  • If they flew like ordinary flies their resemblance to Hymenoptera would be obscured by the rapidity of their flight and they might be caught on the wing by insectivorous birds or other insects; but when poised they display their coloration.

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  • Microscopical examination of the wings, moreover, has shown that the transparency of the wings, common to all, has been acquired by a different modification of the scales in each of the genera exhibiting the Ithomiine type of coloration.

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  • Bates offered no satisfactory explanation of the resemblance between these two genera and others of the same protected sub-families; but he did not hesitate to ascribe the resemblance to them presented by the Pierine, Dismorphia (Leptalis) orise, to mimicry, believing Dismorphia to be unprotected and noting that it departed widely in the matter of coloration from typical members of the sub-family to which it belongs.

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  • This is a very simple case of the possession of the same type of coloration by two or more protected insects inhabiting the same district.

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  • The significance of this phenomenon, as already stated, was first explained by Fritz Milller; but although the term " Mullerian mimicry " has been assigned to this and similar instances, they are not strictly speaking cases of mimicry at all but of warning coloration.

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  • Poisonous or noxious animals usually have some special advertising attribute, sometimes the display of conspicuous coloration, as in the skunk; sometimes the emission of sound as in the rattlesnake; sometimes a combination of the two, as in the common porcupine and the large black scorpions of Africa and India.

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  • An important phenomenon connected with insect mimicry is the convergence of several species in the same area towards a common type of coloration and shape, exhibited by one or more than one protected form.

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  • The same style of coloration is found in Coleoptera of the families Cetoniidae and Cantharidae; in Diptera of the families Asilidae, Bombylidae, Tabanidae and Tachinidae; in Hemiptera of the family Reduviidae and in Lepidoptera of the family Zygaenidae.

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  • In this instance the Hymenoptera, of which the coloration is synaposematic, form together a composite model which the other insects have mimicked.

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  • The mimicry of these insects therefore is synaposematic; but some, at all events, of the flies like the Bombylid Exoprosopa umbrosa, probably form pseudaposematic elements in the group. Into another category Hymenoptera enter not as models but as mimics, the models being inedible Malacodermatous beetles mostly belonging to the genus Lycus and characterized by orange coloration set off by a large black patch upon the posterior end of the elytra and a smaller black spot upon the thorax.

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  • " The Place of Mimicry in a Scheme of Defensive Coloration," Essays on Evolution, pp. 293-382 (1908); W.

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  • Alternations of the brighter colours are also displayed in the feathers of the throat, breast and tail-coverts, so as to be in like manner characteristic of the species, and in several the bare space round the eye is yellow, green, blue or lilac. The sexes are alike in coloration, the males being largest.

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  • Here the sexes also differ in coloration, the males having the head and breast black, and the females the same parts chestnut; but all have a yellow nuchal crescent (whence the name of the group).

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  • This solution is frequently used as a test reagent for the detection of aldehydes, giving, in most cases, a red coloration on the addition of a small quantity of the aldehyde.

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  • A second antelope inhabiting the same country as the chiru is the goa (Gazella picticaudata), a member of the gazelle group characterized by the peculiar form of the horns of the bucks and certain features of coloration, whereby it is markedly distinguished from all its kindred save one or two other central Asian species.

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  • With ferric chloride it gives a blue coloration.

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  • The Canada jay, or "whisky-jack" (the corruption probably of a Cree name), seems to be of a similar nature, but it presents a still more sombre coloration, its nestling plumage, 3 indeed, being thoroughly corvine in appearance and suggestive of its being a pristine form.

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  • In this bird and its many allied forms, coloration, though almost confined to various tints of blue, seems to reach its climax, but want of space forbids more particular notice of them, or of the members of the other genera Cyanocitta, Cyanocorax, Xanthura, Psilorhinus, and more, which inhabit various parts of the Western continent.

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  • It may be recognized by the violet coloration it gives when added to a very dilute solution of potassium bichromate in the presence of hydrochloric acid; by the orange-red colour it gives with a solution of titanium dioxide in concentrated sulphuric acid; and by the precipitate of Prussian blue formed when it is added to a solution containing ferric chloride and potassium ferricyanide.

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  • The black coloration upon the surface produced by this process, as also by the electric bombardment in a vacuum tube, appears to be due to a conversion of the surface film into graphite.

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  • These characters are, however, peculiar to the adults of the male sex; and even as regards coloration young lions show indications of the darker stripes and mottlings so characteristic of the greater number of the members of the genus.

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  • Other lead compounds give the same black coloration from the formation of sulphide.

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  • The plumage is generally inconspicuous: some tint of brown, ranging from rufous to slaty, and often more or less closely barred with a darker shade or black, is the usual style of coloration; but some species are characterized by a white throat or a bay breast.

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  • Alytes obstetricans is a small toad-like Batrachian, two inches in length, of dull greyish coloration, plump form with warty skin and large eyes with vertical pupils.

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  • North America possesses nearly as many; but, curiously enough, the geographical difference of coloration is just the reverse of what it is in Europe - the species with a deep rufous breast, S.

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  • In this reaction urea is heated in a dry tube until it gives off ammonia freely; the residue is dissolved in water, made alkaline with caustic soda, and a drop of copper sulphate solution is added, when a fine violet-red coloration is produced.

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  • When powdered bark is treated with tincture of iodine, little effect is visible in the case of pure cinnamon of good quality, but when cassia is present a deep-blue tint is produced, the intensity of the coloration depending on the proportion of the cassia.

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  • The protection and coloration of metals and alloys includes a large number of industries.

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  • A medieval legend ascribes the conformation of bill and coloration of plumage to a divine recognition of the bird's pity, bestowed on Christ at the crucifixion.

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  • It is a feeble base, and gives a cherry-red coloration with a pine shaving.

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  • In this region many species of reptiles and insects are almost perfectly white - an interesting example of protective coloration.

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  • Compounds of copper impart a bright green coloration to the flame of a Bunsen burner.

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  • Ammonia gives a characteristic blue coloration when added to a solution of a copper salt; potassium ferrocyanide gives a brown precipitate, and, if the solution be very dilute, a brown colour is produced.

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  • It may be detected by the addition of an aqueous solution of potassium cyanide, with which it gives a violet-red coloration, due to the formation of isopurpuric acid.

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  • of resorcin gives a characteristic violet red coloration.

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  • So long as the solution contains a ferrous salt, the drop on the tile changes to blue; hence the absence of a blue coloration indicates the complete oxidation of all the ferrous salt and the end of the reaction.

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  • Many species attain a large size and by their brilliant coloration are very conspicuous objects to the mariner or traveller.

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  • His most important book, La thermocrose ou la coloration calorifique (vol.

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  • Ferric chloride gives a green coloration with the aqueous solution, whilst the alkaline solution rapidly changes to a green and finally to a black colour on exposure to the air.

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  • It crystallizes in prisms, which melt at 218° C. With ferric chloride it gives a dark violet coloration.

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  • The coloration is due to the production of unstable compounds of the ferrous salt and nitric oxide, and it seems that in neutral solutions the compound is made up of one molecule of salt to one of gas; the reaction, however, is reversible, the composition varying with temperature, concentration and nature of the salt.

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  • Ferrous salts also give a bluish white precipitate with ferrocyanide, which on exposure turns to a dark blue; ferric salts are characterized by the intense purple coloration with a thiocyanate.

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  • The walls of the building are reveted with marbles of various hues and patterns, arranged to form beautiful designs, and traces of the mosaics which joined the marbles in the rich and soft coloration of the whole interior surface of the building appear at many points.

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  • The last-mentioned species, by its frontal tuft, small rounded ears, general brown coloration, and minute antlers, connects the typical muntjacs with the small tufted deer or tufted muntjacs of the genus Elaphodus of eastern China and Tibet.

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  • Ferric chloride gives a bluishviolet coloration with the aqueous solution.

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  • By the addition of hydrogen peroxide to a solution of chromic acid, a fine blue coloration due to a perchromic acid is produced which is readily absorbed by shaking out with ether.

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  • In addition to diffuse pigment (mostly in the epidermis), the skin contains granular pigment stored up r' in cells, the chromatophores, restricted to the cutis, which are highly mobile and send out r2 branches which, by contraction and expansion, may rapidly alter the coloration, most batrachians being in this respect quite comparable to the famous chameleons.

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  • Otters are widely distributed, and, as they are much alike in size and coloration, their specific distinctions are by no means well defined.

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  • coloration of the soil material.

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  • coloration of the skin ), with possible complications.

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  • coloration of the images illustrates a chameleon like ability to adapt to different lighting conditions.

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  • We also used a spectrum analyzer to show the coloration.

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  • In these fish, males have red coloration on their sides.

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  • In the here and now support and give a socialist coloration to bread-and-butter issues like the minimum wage, cuts and trade union rights.

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  • The phosphorus in solution reacts with the molybdate ion to produce a blue coloration whose intensity is directly proportional to the concentration of phosphorus.

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  • Perspective: The evolution of warning coloration is not paradoxical.

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  • In breeding coloration the male fish has a dark blotch at the rear of the first dorsal fin.

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  • The second was to take my ONC in textile coloration at Bradford College.

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  • Some take on the protective coloration of the people they write about.

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  • Composition was assumed to be of a neat natural cement with an inherent brown mineral coloration.

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  • Due to the dark coloration of his fur, he can blend into deep shadows.

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  • A slight shift in the angle of illumination reveals that this critter has some wonderfully metallic green coloration.

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  • Their firm, sweet flesh is of a nice red coloration with small dark brown seeds.

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  • coloration industry through support of relevant research.

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  • coloration technology?

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  • coloration processes.

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  • coloration calendar.

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  • Their skin coloration is light gray to dark gray and appears to be non-porous.

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  • The simple theory of the dispersion of light by small particles suffices to explain not only the blue of the zenith, but the comparative absence of small wave-lengths from the direct solar rays, and the brilliant orange and red coloration of the setting sun and of the clouds illuminated by his rays.

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  • Stromeyer in a sample of zinc carbonate from which a specimen of zinc oxide was obtained, having a yellow colour, although quite free from iron; Stromeyer showing that this coloration was due to the presence of the oxide of a new metal.

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  • In some of its structural characters it is most nearly allied to the goldfinch, and both are placed in the same genus by systematists; but in its style of coloration, and still more in its habits; it resembles the redpolls (cf.

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  • Ladybirds are often brightly marked with spots and dashes, their coloration being commonly regarded as an advertisement of inedibility.

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  • Though the genus Strepsilas seems to be rightly placed among the Charadriidae (see PLOVER), it occupies a somewhat abnormal position among them, and in the form of its short pointed beak and its variegated coloration has hardly any very near relative.

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  • Diptera in general are not remarkable for brilliancy of coloration; as a rule they are dull and inconspicuous in hue, the prevailing bodytints being browns and greys; occasionally, however, more especially in species (Syrphidae) that mimic Hymenoptera, the body is conspicuously banded with yellow; a few are metallic, such as the species of Formosia, found in the islands of the East Indian Archipelago, which are among the most brilliant of all insects.

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  • Examples of Selenops (Clubionidae) lie flat and absolutely still on the bark of trees, to which their coloration assimilates, and spring like a flash of light upon any insect that touches their legs; the Lycosidae dart swiftly upon their prey; and the Salticidae, which compared with other spiders have keen powers of vision, stealthily stalk it to within leaping distance, then, gathering their legs together, cover the intervening space with a spring and with unerring aim seize it and bury their fangs in its body.

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  • Sodium gives an intense and persistent yellow flame; lithium gives a carmine coloration, and may be identified in the presence of sodium by viewing through a cobalt glass or indigo prism; from potassium it may be distinguished by its redder colour; barium gives a yellowishgreen flame, which appears bluish-green when viewed through green glass; strontium gives a crimson flame which appears purple or rose when viewed through blue glass; calcium gives an orange-red colour which appears finch-green through green glass; indium gives a characteristic bluish-violet flame; copper gives an intense emerald-green coloration.

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  • The flame coloration (see above) may give information as to which elements are present.

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  • Sulphur is detected by heating the substance with sodium, dissolving the product in water, and adding sodium nitroprusside; a bluish-violet coloration indicates sulphur (H.

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  • either to the simple lateral tail feathers with a few rami only, developed only on one side of the shaft and of uniform metallic coloration - or to the simple contour feathers of small size, with the usual symmetrical series of numerous rami right and left of the shaft and no remarkable colouring.

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  • With diazobenzene sulphonic acid in the presence of alkali and a trace of sodium amalgam, a reddish-violet coloration is formed on standing (E.

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  • It is a colourless oily liquid which boils at 225°-227° C., is somewhat soluble in water, and does not give a coloration with ferric chloride.

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  • Poulton (see his addresses and memoirs published in the Transactions of the Entomological Society and elsewhere), and by Abbot Thayer (Concealing Coloration in the Animal Kingdom, Macmillan & Co.

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  • It crystallizes in prisms which melt at 36° C. and boil at 201 0.8 C. It is soluble in water, and the aqueous solution gives a blue coloration with ferric chloride.

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  • Survival of fair hair and complexion and light eyes among the upper classes in Thebes and some other localities shows that the blonde type of mankind which is characteristic of north-western Europe had already penetrated into Greek lands before classical times; but the ascription of the same physical traits to the Achaeans of Homer forbids us to regard them as peculiar to that latest wave of pre-classical immigrants to which the Dorians belong; and there is no satisfactory evidence as to the coloration of the Spartans, who alone were reputed to be pure-blooded Dorians in historic times.

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  • The young are prettily spotted with white and black ocelli, but the coloration of the adult is mostly very plain.

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  • Most species are brown above and whitish beneath, but in some the lighter tints extend on to the sides, shoulders and head, communicating a coloration somewhat like that of a guinea-pig (see OcTOnoN).

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  • In these particulars, as well as in size and shortness of leg, the dog resembles the weasel; and since there are good reasons for believing that the latter is protected alike by ferocity and stink-glands, it is quite possible that the dog, of unusual coloration and form for the Canidae, is protected from the attacks of pumas, jaguars and ocelots by his likeness to the tayra.

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  • The general style of coloration of orioles is gaudy yellow and black, rendering them invisible in sunlit foliage, and quite different from the more sombre hues of the friar-birds; but in the islands of Bourou, Timor and Ceram the orioles have not only assumed the tints of friar-birds in general, but in each of the islands named a species of oriole has acquired the little peculiarities in colour of plumage possessed by the friar-bird of the same locality.

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  • This habit, the origin of the name " hover-flies," is probably connected with their mimetic coloration.

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  • Intermarriage with British, Dutch, and French with Caribs and Creoles has further complicated the ethnology of the country, producing "Indians" with fair hair and blue eyes, and half-castes with European features and Indian or negroid coloration, or with European coloration and Indian or negroid features.

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  • All the species already mentioned, except the black tern, have much the same general coloration species as " nostrati lingua sterna appellata."

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  • It crystallizes in prisms, which melt at 218° C. With ferric chloride it gives a dark violet coloration.

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  • Intense coloration commands the highest prices.

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  • Sometimes outlets purchase pieces that have a variation in fabric coloration that's a fabric manufacturing defect.

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  • You can get quercetin in your diet by eating red apples and red onions since quercetin is the phytochemical that contributes to the red coloration.

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  • This is found in the natural coloration of the Italian clay tiles used on floors and steps.

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  • Add in humid conditions, and regular makeup just seems to melt away, leaving you with creases, shine and a lack of a healthy coloration.

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  • The laser is a mercury metal halide light with a wavelength of violet coloration (350 - 400 nm).

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  • Besides the full range of cosmetics women have come to expect, you'll also find skin care products that meet the specific needs of people of color, including uneven coloration, scarring and dark spots.

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  • This leaves only the yellow coloration visible to the eyes.

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  • With females sometimes getting larger in diameter than an average quarter, their size and bright, striking coloration can make them appear almost tropical.

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  • Dolphin Plunge is the park's signature attraction, with the clear water slide tube plunging through a 42 foot drop that passes through a lagoon populated with playful Commerson's dolphins with their distinct black and white coloration.

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  • Hairbulb-The root of a strand of hair from which growth and coloration of the hair develops.

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  • Hair really doesn't change color, instead it loses its natural coloration as the hair follicles age.

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  • Another potential drawback to the Glade Wisp is the coloration of the simulated flame.

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  • The highlight of mokume gane engagement rings is the distinctive pattern and coloration of the metal, so the use of gemstones is fairly rare, since they would obscure much of the metal band.

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  • Different jewelers generally have a preference for one type of metal because of its quality, malleability, coloration, or other properties.

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  • What gives the stones their smoky coloration are actually mineral inclusions, usually iron oxides such as magnetite, hematite, or sulfide compounds.

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  • They may be grown synthetically in the laboratory, or inferior diamonds may be irradiated to achieve a smoky black coloration.

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  • To grow a single black specimen can take up to two years, and the dark coloration only comes from a specific type of black-lipped oyster, pinctada margaratifara.

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  • Each of these metals is still silvery-white (though with subtle differences), and couples can choose cheaper options without losing the overall coloration they desire.

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  • To form the sharp yellow, a greater concentration of nitrogen is necessary, and it cannot be tainted with other elements that will alter the stone's final coloration.

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  • Their exquisite coloration and rarity makes them a splendid choice to represent the finest relationship, offering an elegant and unique style to match the couple's sparkling commitment.

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  • The blue coloration in these gems is caused by boron in the diamond's crystalline structure.

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  • Harmless melanin works to heal sun damage, but unfortunately the dark coloration of the pigment causes spotting.

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