Colourless Sentence Examples

It is tasteless, colourless and odourless gas, which is exceedingly stable and inert.

The blood is colourless.

The salts of the acid are colourless or faintly yellow.

Examples of the first case are found among the colourless acridines and quinoxalines which give coloured salts; of the second case we may notice the colourless hydrochloride and sulphate of the deep yellow o-aminobenzophenone.

They are either colourless liquids, which boil without decomposition, or crystalline solids; and are both basic and acidic in character.

Thus para-nitrophenol has colourless molecules, but an intensely yellow negative ion.

In neutral, and still more in acid solutions, the dissociation of the indicator is practically nothing, and the liquid is colourless.

The different kinds of mica vary from perfectly colourless and transparent - as in muscovite - through shades of yellow, green, red and brown to black and opaque - as in lepidomelane; the former have a pearly lustre and the latter a submetallic lustre on the cleavage surfaces.

Phlogopite is rarely found as colourless transparent sheets and is therefore almost exclusively used for electrical purposes.

By dissolving red lead, Pb304, in glacial acetic acid and crystallizing the filtrate, colourless monoclinic prisms of lead tetracetate, Pb(C2H302)4, are obtained.

It forms colourless transparent crystals, soluble in one and a half parts of cold water and in eight parts of alcohol, which on exposure to ordinary air become opaque through absorption of carbonic acid, which forms a crust of basic carbonate.

Solutions of lead salts (colourless in the absence of coloured acids) are characterized by their behaviour to hydrochloric acid, sulphuric acid and potassium chromate.

These are colourless crystalline compounds, which are most readily prepared by passing ammonia gas into an ethereal solution of the aldehyde.

It is a colourless liquid, with a very pungent smell, and attacks the mucous membrane very rapidly.

The nitro compounds are colourless, somewhat pleasant smelling liquids, which distil without decomposition and possess boiling points much higher than those of the isomeric nitrous esters.

They are colourless solids which are readily soluble in water and possess the character of weak acids.

They discriminate between the red or erythro-salts, which are well crystallized, very explosive and unstable compounds, and which regenerate the colourless nitrolic acid on the addition of dilute mineral acids, and the leuco-salts, which are colourless salts obtained by warming the erythro-salts or by exposing them to direct sunlight.

An intensely yellow acid salt is described, as is also a very unstable colourless salt which could not be examined further owing to its very labile nature.

On Dec. 27 1912 Cuvaj was replaced by a colourless official, Dr. Unkelhausser, who marked time until a fresh candidate for the post of commissary or dictator was forthcoming in the person of Baron Skerlecz (July 23 1913).

He also made If we remember that by " blood " Aristotle understood " red blood," and that he did not know of the existence of colourless blood, his primary division is not a bad one.

Stannous salt solutions yield a brown precipitate of SnS with sulphuretted hydrogen, which is insoluble in cold dilute acids and in real sulphide of ammonium, (NH 4) 2 S; but the yellow, or the colourless reagent on addition of sulphur, dissolves the precipitate as SnS 2 salt.

A "transudate" is a liquid having a composition resembling that of blood-serum, while the term "exudate" is applied to an effused liquid whose composition approaches that of the blood-plasma in the relationship of its solid and liquid parts, besides in most cases containing numbers of colourless blood-corpuscles.

If oxide of copper is added to a glass mixture containing a strong reducing agent, a glass is produced which when first taken from the crucible is colourless but on being reheated develops a deep crimson - ruby colour.

These glasses may be colourless or coloured.

The latter are made by dipping a small mass of molten colourless glass into an iron cup around the inner wall of which short lengths of white cane have been arranged at regular intervals.

They, moreover, suggested the introduction for the manufacture of table-glass of a material similar in texture to that used by the Venetians, both colourless and tinted.

For the highest quality of bottles, which are practically colourless, sand, limestone and sulphate and carbonate of soda are used.

The invention of colourless Bohemian glass brought in its train the practice of cutting glass, a method of ornamentation for which Venetian glass, from its thinness, was ill adapted.

A more important outcome, however, of Italian influence was the production, in emulation of Venetian glass, of a glass made of refined potash, lime and sand, which was more colourless than the material it was intended to imitate.

This colourless potash-lime glass has always been known as Bohemian glass.

About 1350 considerable quantities of colourless flat glass were supplied by John Alemayn of Chiddingfold for glazing the windows in St George's chapel, Windsor, and in the chapel of St Stephen, Westminster.

It is the most brilliant and the most colourless of all glasses, and was undoubtedly first perfected in England.

When pure, it is a colourless gas which is not spontaneously inflammable at ordinary temperature and pressure, but a slight increase of temperature or decrease of pressure sets up decomposition.

It is a colourless, strongly fuming gas which has a suffocating smell.

These normal esters are colourless, pleasantsmelling liquids, which are readily soluble in water.

Silver vapour is blue, potassium vapour is green, many others (mercury vapour, for instance) are colourless.

Benzene is a colourless, limpid, highly refracting liquid, having a pleasing and characteristic odour.

These are minute, oval, colourless spores, which serve to spread the disease over the vineyard and from place to place.

All sugars are colourless solids or syrups, which char on strong heating; they are soluble in water, forming sweet solutions but difficultly soluble in alcohol.

The salt crystallizes out on cooling with 7 molecules of water, forming colourless orthorhombic prisms, usually small and needle-shaped.

Titanium ch oride, TiC1 4, is obtained as a colourless filming liquid of 1.7604 sp. gr.

Titanium oxide when fused with microcosmic salt in the oxidizing flame yields a bead which is yellowish in the heat but colourless after cooling.

The primary amines are colourless liquids or crystalline solids, which are insoluble in water, but readily soluble in the common organic solvents.

It crystallizes in small colourless needles and is easily soluble in water; the concentrated aqueous solution dissolves bromine and iodine readily.

It is a colourless, amorphous solid, which is almost insoluble in water, its solubility diminishing with increasing temperature; it is appreciably soluble in concentrated sulphuric acid.

Pure ethyl alcohol is a colourless, mobile liquid of an agreeable odour.

The solution is filtered and allowed to cool, when colourless rhombic pyramids of the aurocyanide separate.

Potassium auricyanide, 2KAu(CN) 4.3H 2 O, is obtained as large, colourless, efflorescent tablets by crystallizing concentrated solutions of auric chloride and potassium cyanide.

It forms colourless, monoclinic prisms, which turn brown on exposure to air.

Sodium aurothiosulphate, 3Na 2 S 2 O 3 Au2S203.4H20, forms colourless needles; it is obtained in the direct action of sodium thiosulphateongoldinthe presence of an oxidizing agent, or by the addition of a dilute solution of auric chloride to a sodium thiosulphate solution.

Its advantages rest on its high density and mobility; its main disadvantages are its liability to decomposition, the originally colourless liquid becoming dark owing to the separation of iodine, and its high coefficient of expansion.

It is almost colourless and has a small coefficient of expansion; its hygroscopic properties, its viscous character, and its action on the skin, however, militate against its use.

It is a colourless crystalline solid which readily fuses to a yellow liquid.

It is a colourless solid and behaves as a dibasic acid.

Some tellurates exist in two forms, a colourless form soluble in water and acids, and a yellow form insoluble in water and acids.

It forms colourless, very hygroscopic prisms, which attack glass, slowly at ordinary temperatures, more rapidly when heated (Ber., 1909, 4 2, p. 49 2).

It is a colourless gas, having a density of 0.92.

If they do not deny that Greek philosophy has entered into Christian doctrine, they consider it a colourless medium used in fixing the contents of revelation.

It forms a colourless vitreous mass, hence its name " glacial phosphoric acid."

He composed his Cabinet of colourless officials and confessed adherents of the various nationalities.

The sulphydrate or hydrosulphide, Ca(SH)2, is obtained as colourless, prismatic crystals of the composition Ca(SH) 2.6H 2 O, by passing sulphuretted hydrogen into milk of lime.

It crystallizes in colourless prisms, possessing a saline taste; it sublimes on heating and is easily soluble in water.

It forms colourless crystals which are soluble in water and decompose on heating, with the formation of nitrogen.

Its use appears to have spread more rapidly outside Germany than in Germany itself, one cause of its popularity being that it was negative and colourless, and could thus be applied by adherents of the "old religion" to those of the "new religion," without giving offence, on occasions when it was expedient to avoid abusive language.

His first step when he was admitted to the European committee, which was in the plans of the allies to act so colourless a part, was to ignore the position of the Four and to assert that only the congress as a whole could give the committee full powers.

The anhydrous salt is a colourless powder or porous mass, having an alkaline taste and reaction.

It is a colourless transparent glass mass, which dissolves in boiling water to form a thick liquid.

In microscopic section the best slates show much colourless mica in small, thin, irregular scales.

Graphite is black and opaque, whilst diamond is colourless and transparent; it is one of the softest (H= I) of minerals, and diamond the hardest of all; it is a good conductor of electricity, whilst diamond is a bad conductor.

It is a colourless gas which may be liquefied by a pressure of 7 to 8 atmospheres.

At ordinary temperatures it is a colourless gas, possessing a penetrating and suffocating smell.

It is a colourless, odourless gas of specific gravity 0.967 (air = I).

It is a colourless gas, possessing a faint pungent smell and a slightly acid taste.

It is a colourless gas, possessing an unpleasant pungent smell.

It Is A Colourless, Odourless Gas, Which Burns With A Blue Flame And Is Decomposed By Heat.

The fused product solidifies on cooling into a colourless glass.

It is readily soluble in water, and on evaporation in a vacuum over caustic lime it deposits colourless, rhombohedral crystals of 2KHS.H 2 0.

The solution has a bitter taste, and on exposure to the air turns yellow, but on long exposure it recovers its original colourless appearance owing to the formation of thiosulphate.

The order of the successive colours in all colourless transparent media is red, orange, yellow, green, blue, indigo and violet.

It crystallizes from water in colourless rhombic prisms, containing four molecules of water of crystallization, and possesses a very acid reaction.

This fact, combined with the colourless record of their candidate, enabled them to sweep the country at the November election.

It is a colourless sharp-smelling gas which fumes strongly on exposure to air.

The saturated aqueous solution is colourless and fumes strongly on exposure to air; after a time it darkens in colour owing to liberation of iodine.

Potassium cyanide is an excessively poisonous, colourless, deliquescent solid; it is readily soluble in water, but almost insoluble in absolute alcohol.

They are mostly colourless liquids which boil without decomposition, or solids of low melting point.

They are colourless liquids, readily soluble in alcohol and in ether, but insoluble in water.

Many of the crystals are parti-coloured, the blue being distributed in patches in a colourless or yellow stone; but by skilful cutting, the deep-coloured portion may be caused to impart colour to the entire gem.

Hence clear colourless corundum is known as white sapphire or "leucosapphire."

It contains, in addition to tannin, a peculiar principle called larixin, which may be obtained in a pure state by distillation from a concentrated infusion of the bark; it is a colourless substance in long crystals, with a bitter and astringent taste, and a faint acid reaction; hence some term it larixinic acid.

Benzaldehyde is a colourless liquid smelling of bitter almonds.

Magnesium Nitrate, Mg(NO 3) 2.6H 2 O, is a colourless, deliquescent, crystalline solid obtained by dissolving magnesium or its carbonate in nitric acid, and concentrating the solution.

It slowly decomposes in moist air, liberating sulphuretted hydrogen, and with water it gives a yellow solution which becomes colourless on exposure.

Strychnine crystallizes from alcohol in colourless prisms, which are practically insoluble in water, and with difficulty soluble in the common organic solvents.

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.

If either one of these two is absent the plant is colourless.

Turning now to instances of the opposite kind, it is known that silkworms which spin colourless cocoons are more resistant to the attacks of a certain deadly fungus than are those which spin the yellow ones.

But about 7% showed an exceedingly limited coagulation, in which the clot was colourless and flocculent, and confined to the heart.

If these vertical faces become very numerous, the eye will perceive a colourless horizontal circle.

The emerging rays are parallel to their original direction and form a colourless image on the parhelic circle opposite the sun.

These were investigated by Tulasne in 1853, who gave them the name spermogonia The lower, ventral portion of the sperm09' gonium is lined by delicate hyphae, the sterigmata, which give origin to minute colourless cells, the spermatia.

The paraphyses; (which may be absent entirely in the Pyrenolichens) are erect, colourless filaments which are After Tulasne, from De Bary's Vergleichende Morphologie and Biologie der Pilze, Mycetozoen and Bacterien, by permission of Wilhelm Engelmann.

In the first case the spores are usually colourless, the second case always brown.

Spores unicellular, parallel-multicellular or muriform, usually colourless, cross-walls usually thin.

Castor oil is a viscid liquid, almost colourless when pure, possessing only a slight odour, and a mild yet highly nauseous and disagreeable taste.

The free pararosaniline, C19H19N30, and rosaniline, C20H21N30, may be obtained by precipitating solutions of their salts with a caustic alkali, colourless precipitates being obtained, which crystallize from hot water in the form of needles or plates.

The ketones are of neutral reaction, the lower members of the series being colourless, volatile, pleasant-smelling liquids.

At the other extreme the cell-walls of many lichen-fungi are soft and colourless, but turn blue in iodine, as does starch.

But we may refer generally here to certain phenomena peculiar to these plants, the life-actions of which are restricted and specialized by their peculiar dependence on organic supplies of carbon and nitrogen, so that most fungi resemble the colourless cells of higher plants in their nutrition.

They are colourless crystalline solids which turn brown on exposure.

Potassium benzene diazotate, C 6 H 5 N 2 OK, crystallizes in colourless silky needles.

This salt is a colourless crystalline substance of composition CH30 C6H4 N2 CN HCN 2H20, and has the properties of a metallic salt; it is very soluble in water and its solution is an electrolyte, whereas the solutions of the synand anticompounds are not electrolytes.

The esters of the aliphatic and aromatic acids are colourless neutral liquids, which are generally insoluble in water, but readily dissolve in alcohol and ether.

It is a colourless oily liquid of strongly acid reaction; its aqueous solution decomposes on standing and on heating it forms diethyl sulphate and sulphuric acid.

Absolutely colourless stones are not so common as cloudy and faintly coloured specimens; the usual tints are grey, brown, yellow or white; and as rarities, red, green, blue and black stones have been found.

Many large stones have been found in South Africa; some are yellow but some are as colourless as the best Indian or Brazilian stones.

In very succulent plants the cells form a compact mass, and those in the centre are often colourless.

It crystallizes in large colourless plates which possess a blue fluorescence.

When chemically pure, which is rarely the case, blende is colourless and transparent; usually, however, the mineral is yellow, brown or black, and often opaque, the depth of colour and degree of transparency depending on the amount of iron present.

By evaporation of a solution of lanthanum oxide in hydrochloric acid to the consistency of a syrup, and allowing the solution to stand, large colourless crystals of a hydrated chloride of the composition 2LaC1 3.15H 2 O are obtained.

Rock-salt when pure is colourless and transparent, but is usually red or brown by mechanical admixture with ferric oxide or hydroxide.

Sometimes, to get rid of these impurities, the brine is treated in a large tub-`(bessoir) with lime; on settling it becomes clear and colourless, but the dissolved lime forms a skin on its surface in the pan, retards the evaporation and impedes the crystallization.

Certain species, such as Gymnodinium spirale, are colourless and therefore saprophytic in their method of nutrition.

These are for the most part long, thin-walled, unicellular and colourless, and arise from the outer cells of the pseudo-cortex, or from the terminal cells of branches when the filaments are free.

The colourless granules of Florideae, which are supposed to constitute the carbohydrate reserve material, have been called floridean-starch.

The somewhat colourless compromise doubtless proceeded from the party of Eusebius of Nicomedia, and proved not inacceptable to the more nearly orthodox members of the synod.

Thallic chloride, T1C1 3, is obtained by treating the monochloride with chlorine under water; evaporation in a vacuum gives colourless deliquescent crystals of T1C1,.H20.

Thallic sulphate, T1 2 (SO 4) 3.7H 2 O, and thallic nitrate, Tl(NO 3) 3.8H 2 0, are obtained as colourless crystals on the evaporation of a solution of the oxide in the corresponding acid.

Oxygen is a colourless, odourless and tasteless gas.

In his characterizations of persons, borrowed from Socrates, he is more dull and colourless.

Whatever its origin, the word Mass had by the time of the Reformation been long applied only to the Eucharist; and, though in itself a perfectly colourless term, and used as such during the earlier stages of the 16th century controversies concerning the Eucharist, it soon became identified with that sacrificial aspect of the sacrament of the altar which it was the chief object of the Reformers to overthrow.

Clearly the word Mass had ceased to be a colourless term generally applicable to the eucharistic service; it was, in fact, not only proscribed officially, but in the common language of English people it passed entirely out of use except in the sense in which it is defined in Johnson's Dictionary, i.e.

It is a colourless crystalline solid, readily soluble in water and alcohol; it deliquesces on exposure to air.

It is a colourless substance, which is easily fusible.

Cerium compounds may be recognized by the red precipitate of ceric hydroxide, which is formed when sodium hypochlorite is added to a colourless cerous salt.

The anthelia (from the Greek duet, opposite, and i Xcos, the sun) are coloured red on the inside, the outside being generally colourless owing to the continued overlapping of many spectra.

This is at first colourless carbon dioxide, but later on inflammable gases come out of the mass, which at this stage has turned into a thicker, pasty condition, showing that the end of the reaction is near.

The salts of scandium are all colourless, the chloride and bromide corresponding in composition to Sc 2 X 6.12H 2 0; the fluoride is anhydrous.

Gallium forms colourless salts, which in neutral dilute aqueous solutions are converted on heating into basic salts.

In the solid state triphenyl is colourless, crystalline and bimolecular.

Evaporation of a solution at ordinary temperatures gives colourless monoclinic prisms of Th(SO 4) 2.9H 2 O, which is isomorphous with uranium sulphate, U(S04)2.9H20.

The rubidium salts are generally colourless, mostly soluble in water and isomorphous with the corresponding potassium salts.

Rubidium hydroxide, RbOH, is a colourless solid which is formed by the action of rubidium on water, or by the addition of baryta water to a solution of rubidium sulphate.

It crystallizes in colourless cubes and volatilizes when heated very strongly.

It forms large colourless hexagonal crystals.

When heated in a current of hydrogen it is transformed into the colourless disulphide, whilst if the heating be carried out in a current of nitrogen it yields the trisulphide, Rb 2 S 3 H 2 0.

It is a colourless liquid with a sweetish burning taste and an agreeable odour.

The hydrides of the halogens are all colourless, strongly fuming gases, readily soluble in water and possessing a strong acid reaction; they react readily with basic oxides, forming in most cases well defined crystalline salts which resemble one another very strongly.

The solution of chlorine in water, when freshly prepared, possesses a yellow colour, but on keeping becomes colourless, on account of its decomposition into hydrochloric acid and oxygen.

Not that there is any evidence of Buddhists ever having been actually persecuted by the Brahmans, or still less of Sankara himself ever having done so; but the traditional belief in some personal god, as the principal representative of an invisible, all-pervading deity, would doubtless appeal more directly to the minds and hearts of the people than the colourless ethical system promulgated by the Sakya saint.

As water for respiration streams through the clefts, gaseous interchange takes place between the circulating colourless blood and the percolating water.

It crystallizes in colourless plates and is readily soluble in alcohol, ether, &c., but not in water.

The colour in the case of red wines is first altered from red to brown, and in bad cases disappears altogether, leaving an almost colourless solution.

All three terms are now in use, "nonconformist" being the most usual, as it is the most colourless.

Geuther, who showed that the chief product of the action of sodium on ethyl acetate was a sodium compound of composition C6H903Na, which on treatment with acids gave a colourless, somewhat oily liquid of composition C6H1003.

It dissolves in ammonia, forming a colourless solution which rapidly oxidizes and turns blue.

Its solution in ammonia is at first colourless, but rapidly turns blue, owing to oxidation.

When pure the acid forms a colourless, amorphous mass, very soluble in water, less so in alcohol, and practically insoluble in ether.

A saturated solution of the hydroxide deposits on cooling a hydrated form Ba(OH) 2.8H 2 0, as colourless quadratic prisms, which on exposure to air lose seven molecules of water of crystallization.

The chloride crystallizes in colourless rhombic tables of specific gravity 3.9 and is readily soluble in water, but is almost insoluble in concentrated hydrochloric acid and in absolute alcohol.

His very biographies are colourless.

The fungus is very small in size, and under the microscope appears slightly whitish or colourless.

It is a poisonous colourless gas, with a characteristic offensive smell.

It is a colourless liquid, slightly soluble in water, and is spontaneously inflammable.

All the known forms of plant-life are either fungi or allied to them, and many are only microscopic. The most interesting inhabitants of Mammoth Cave are the blind, wingless grasshoppers, with extremely long antennae; blind, colourless crayfish (Cambarus pellucidus, Telk.); and the blind fish, Amblyopsis spelaeus, colourless and viviparous, from 1 in.

Nearly all bacteria, owing to the absence of chlorophyll, are saprophytic or parasitic forms. Most of them are colourless, but FIG.

In consequence of its low refractive and dispersive power, colourless pellucid fluor-spar is valuable in the construction of apochromatic lenses, but this variety is rare.

As the solution of potassium permanganate, which is deep red in colour, is dropped into the colourless iron solution, it is quickly decolorized while the iron solution gradually assumes a yellowish tinge, the first drop of the permanganate solution in excess giving it a pink tint.

Silver nitrate, AgNO 3, one of the most important silver salts, is obtained by dissolving the metal in moderately dilute nitric acid; on evaporation it separates in the anhydrous form as colourless triclinic plates.

Pyridine is a colourless liquid of a distinctly unpleasant, penetrating odour.

It is a colourless gas which possesses a characteristic smell, more unpleasant than sulphuretted hydrogen.

It crystallizes in colourless needles.

For this reason those barks which, like C. Calisaya, C. officinalis, and C. Ledgeriana, contain but little colouring matter are preferred, the quinine being more easily extracted from them in a colourless form.

It occurs in a colourless crystalline powder, having the formula C20H24N202.2HC1.3H20.

The solution is of an orange-red colour, and is quite permanent in the dark, but on exposure to light, gradually becomes colourless, owing to decomposition into hydrobromic acid and oxygen.

At ordinary temperatures hydrobromic acid is a colourless gas which fumes strongly in moist air, and has an acid taste and reaction.

It is infusible before the gas blowpipe, but in the oxyhydrogen flame fuses to a clear colourless glass, which has a hardness of 5 and specific gravity 2.2.

Further, these varieties may be of almost any colour, whereas transparent crystals have only a limited range of colour, being either colourless (rock-crystal), violet (amethyst), brown (smoky quartz) or yellow (citrine).

It remains colourless in vacuum tubes in the dark, but on exposure it rapidly turns yellow.

It is a colourless, extremely poisonous gas, possessing a characteristic offensive smell, resembling that of rotting fish.

It crystallizes in colourless cubes, is deliquescent, and often inflames spontaneously on exposure to air.

The primary and secondary phosphines are colourless compounds, and with the exception of methyl phosphine are liquid at ordinary temperature.

The dialkyl phosphinic acids are also colourless compounds, the majority of which are insoluble in water.

With the help of counsellors more subtle than discerning, the emperor, with the object of uniting the various parties in the Church at any cost, sought for the most colourless possible formula of belief, which he hoped to persuade all the bishops to accept.

Quinoline is a colourless liquid with a smell resembling that of pyridine.

It consists of colourless granular crystals freely soluble in water and having an alkaline reaction.

It is a colourless oil, moderately soluble in water.

It crystallizes in colourless prisms and is optically active.

The tetramethyl derivative, amalic acid, C$(CH3)4N407, has been prepared by oxidizing caffeine with chlorine water, and forms colourless crystals which are only slightly soluble in hot water.

Red ferric hydroxide dissolves in acids to form a well-defined series of salts, the ferric salts, also obtained by oxidizing ferrous salts; they are usually colourless when anhydrous, but yellow or brown when hydrated.

Ferrous fluoride, FeF21 is obtained as colourless prisms (with 8H2O) by dissolving iron in hydrofluoric acid, or as anhydrous colourless rhombic prisms by heating iron or ferric chloride in dry hydrofluoric acid gas.

Ferric fluoride, FeF 31 is obtained as colourless crystals (with 42H2O) by evaporating a solution of the hydroxide in hydrofluoric acid.

Iron dissolves in a solution of sulphur dioxide in the absence of air to form ferrous sulphite and thiosulphate; the former, being less soluble than the latter, separates out as colourless or greenish crystals on standing.

Ferric sulphate, Fe2(S04)3, is obtained by adding nitric acid to a hot solution of ferrous sulphate containing sulphuric acid, colourless crystals being deposited on evaporating the solution.

Oil of turpentine is a colourless liquid of oily consistence, with a strong characteristic odour and a hot disagreeable taste.

Rosin varies in colour, according to the age of the tree whence the turpentine is drawn and the amount of heat applied in distillation, from an opaque almost pitchy black substance through grades of brown and yellow to an almost perfectly transparent colourless glassy mass.

The lower members are colourless mobile liquids, readily soluble in water and exhibiting a characteristic odour and taste.

The metavanadates are usually yellowish or colourless solids.

Although his narrative is colourless, and although he was one of those who showed some sympathy for Becket at the council of Northampton (1164),(1164), the correspondence of Diceto shows that he regarded the archbishop's conduct as ill-considered, and that he gave advice to those whom Becket regarded as his chief enemies.

It is a colourless gas of unpleasant smell, excessively poisonous, very slightly soluble in water.

It is a colourless crystalline substance, assuming forms belonging to the hexagonal system, and distinguished by a well-marked habit of twinning, which occasions the beautiful "ice flowers" displayed by hoar-frost.

In general a stream of plane-polarized light undergoes no change in traversing a plate of an uniaxal crystal in the direction of its axis, and when the emergent stream is analysed, the light, if originally white, is found to be colourless and to be extinguished when the polarizer and analyser are crossed.

They are almost colourless at birth, excepting the antennae, which are green, and their length is To to 15 mm.

It crystallizes in colourless prisms with one molecule of water, which redden on exposure.

They are colourless liquids, which are insoluble in water and possess a characteristic offensive smell.

Too much light is useless for observing delicately coloured or colourless preparations, whose parts only become visible as a result of slight differences of diffraction.

Aniline hydrochloride forms large colourless tables, which become greenish on exposure; it is the "aniline salt" of commerce.

There is little description in his novels, which sometimes seem to move on an almost bare and colourless stage, but, on the other hand, the analysis of motives, of emotions, and of "the fine shades" has rarely been carried further.

It is colourless, or of different colours.

Nutrition is of course holozoic or saprophytic in the colourless forms, holophytic in the coloured; but these divergent methods are exhibited by different species of the same genus, or even by individuals of one and the same species under different conditions.

The affinities of the Dinoflagellata are certainly with those Cryptomonadine Flagellates which possess two unequal flagella; the zoospores or young of the Cystoflagellates are practically colourless Dinoflagellates.

It has an amorphous internal structure, a dull fracture; is of a yellow to yellowish-brown hue, the purer varieties being almost colourless, or possessing a greenish tinge, and has a somewhat bitter aromatic taste, and a balsamic odour, which is developed by heating.

It contains about 72% of resin soluble in alcohol (Kurbatow); a large proportion of gum soluble in water, and apparently identical with gum arabic; and a small quantity of a colourless inflammable essential oil, one of the constituents of which is the body oliben, C,0H16.

Even here then the use of the word is not colourless.

Raschig (Be y ., 1908, 4 1, p. 4 1 94) as a highly explosive colourless gas on acidifying a mixture of sodium azide and hypochlorite with acetic or boric acid.

After some time the colour entirely disappeared; the strip of copper was then taken out and reweighed, and it was found to have lost 8.03 grams. Thus the chlorine, which in the coloured compound was in union with 8 grams of copper, appears, in the colourless chloride, to be combined with 16.03 grams, or almost exactly double the amount.

From its aqueous solution, concentrated hydrochloric acid precipitates hydrocobalticyanic acid, H 3 Co(CN) 61 as a colourless solid which is very deliquescent, and is not attacked by concentrated hydrochloric and nitric acids.

When unaltered and containing no ferric oxide, the mineral is colourless, but on exposure to the light it very soon becomes of a characteristic indigo-blue colour.

It yields colourless salts; the crystallized sulphate has the formula Tb2(S04)3.8H20.

Crystals of barytes may be transparent and colourless, or white and opaque, or of a yellow, brown, bluish or greenish 'colour.

It is colourless and contains definite corpuscles, which are round or elliptical, and in many Metanemertines are coloured red by haemoglobin, being colourless in other species.

If the hot colourless bead becomes enamel-white on cooling even when minute quantities of the substances are employed, we may infer the presence of barium or strontium.

A " transudate " is a liquid having a composition resembling that of blood-serum, while the term " exudate " is applied to an effused liquid whose composition approaches that of the blood-plasma in the relationship of its solid and liquid parts, besides in most cases containing numbers of colourless blood-corpuscles.

The glass for pressed ware must be colourless, and, when molten, must be sufficiently fluid to adapt itself readily to the intricacies of the moulds, which are often exceedingly complex.

In most cases this is a mollusc, and the larvae bore their way into the most diverse organs, often accumulating to such an extent as to give a distinctly orange colour to an otherwise colourless tissue, and to cause the demolition of particular structures e.g.

The blood is colourless, and has colourless amoeboid corpuscles floating in it.

The blood is usually a colourless liquid containing amoeboid cells and sometimes other corpuscles called haematids.

Lacking his intensity of passion and his admirable faculty for seizing the most evanescent shades of difference in feeling, they degenerated into colourless and lifeless insipidities made insupportable by the frigid repetition of tropes and conceits which we are fain to pardon in the master.

Selenium fluoride, SeF4, is obtained as a colourless liquid by the direct action of fluorine or selenium (P. Lebeau, Comptes rendus, 1907, 144, p. 1042).

Boron dissolves in molten aluminium, and on cooling, transparent, almost colourless crystals are obtained, possessing a lustre, hardness and refractivity near that of the diamond.

It is a colourless pungent gas which is exceedingly soluble in water.

A saturated solution of the gas, in water, is a colourless, oily, strongly fuming liquid which after a time decomposes, with separation of metaboric acid, leaving hydrofluoboric acid HF BF3 in solution.

In Aeolosoma it is usually colourless.

The colour varies somewhat with the chemical composition, being grey or colourless in chlorargyrite, greenish-grey in embolite and bromargyrite, and greenish-yellow to orange-yellow in iodembolite.

The colour produced is generally of a greenish shade; for example, nitrosobenzene is green when fused or in solution (when crystalline, it is colourless), and dinitrosoresorcin has been employed as a dyestuff under the names " solid green " and " chlorine."

This grouping is not always colour-producing, since diphenyl is colourless.

With basic substances, the chromophoric combination with a colourless acid is generally attended by a deepening in colour; auxochromic combination, on the other hand, with a lessening.

Mention may be made of the phenomenon of halochromism, the name given to the power of colourless or faintly-coloured substances of combining with acids to form highly-coloured substances without the necessary production of a chromophoric group. The researches of Adolf von Baeyer and Villiger, Kehrmann, Kauffmann and others, show that this property is possessed by very many and varied substances.

He has also shown that the nitrophenols yield, in addition to the colourless true nitrophenol ethers, an isomeric series of coloured unstable quinonoid aci-ethers, which have practically the same colour and yield the same absorption spectra as the coloured metallic salts.

Another view is that the colour is due to some comparatively simple substance suspended in a colourless medium.

Nitrogen is a colourless, tasteless and odourless gas, which is only very slightly soluble in water.

It is a colourless gas which is only sparingly soluble in water.

This is filtered through fresh bone-char filters, from which it is discharged as a practically colourless liquid.

On distillation of equal parts of dry potassium acetate and arsenious oxide, a colourless liquid of unbearable smell passes over, which is spontaneously inflammable and excessively poisonous.

Cyanogen is a colourless gas, possessing a peculiar characteristic smell, and is very poisonous.

Boron fluoride also combines with ammonia gas, equal volumes of the two gases giving a white crystalline solid of composition BF 3 NH 3 i with excess of ammonia gas, colourless liquids BF 3.2NH 3 and BF 3.3NH 3 are produced, which on heating lose ammonia and are converted into the solid form.

One could hardly expect that a colourless deity of this description, so completely the product of priestly speculation, could ever have found a place in the hearts of the people generally.

Sulphuretted hydrogen is a colourless gas possessing an extremely offensive odour.

It is a colourless gas which possesses a characteristic suffocating odour.

It is a colourless, oily, fuming liquid which is decomposed by water into sulphuric and hydrochloric acids.

Glycerin is a viscid, colourless liquid of sp. gr.

It is the adrectal gland, and in the genera Murex and Purpura secretes a colourless liquid which turns purple upon exposure to the atmosphere, and was used by the ancients as a dye.

Its specific gravity of 4.5 is about twice as great as that of salt and of many other colourless, transparent and glassy minerals not unlike barytes in general appearance.

Crystals of barytes may be transparent and colourless, or white and opaque, or of a yellow, brown, bluish or greenish colour.

Barytes is of common occurrence in metalliferous veins, especially those which yield ores of lead and silver; some of the largest and most perfect crystals of colourless barytes were obtained from the lead mines near Dufton in Westmorland.

The acid is thus obtained in colourless rhombic prisms of the composition C 6 H 8 0 7 +H 2 0.

It contains a colourless fluid, with flat, oval, nucleated corpuscles, as a rule colourless, but in some cases tinged with yellow or red haemoglobin.

The crude product is very impure and possesses an offensive smell; it may be purified by forcing a fine spray of lime water through the liquid until the escaping water is quite clear, the washed bisulphide being then mixed with a little colourless oil and distilled at a low temperature.

These are washed with ammonium chloride until the filtrate is colourless, ignited, fused with caustic potash and nitre, the melt dissolved in water and nitric acid added to the solution until the colour of potassium ruthenate disappears.

Potassium ruthenium cyanide, K4Ru(CN) 6.3H 2 O, formed when potassium ruthenate is boiled with a solution of potassium cyanide, crystallizes in colourless plates which are soluble in water.

If the hot bead is colourless and remains clear on cooling, we may suspect the presence of antimony, aluminium, zinc, cadmium, lead, calcium and magnesium.

In the free state these substances are colourless, and were assumed to have the formula shown in i.

On the chromophoreauxochrome theory (the nitro group being the chromophore, and the hydroxyl the auxochrome) it is necessary in order to explain the high colour of the metallic salts and the colourless alkyl and aryl derivatives to assume that the auxochromic action of the hydroxyl group is only brought strongly into evidence by salt formation.