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Very Slight Solubility In Water Would Be A Fatal Objection; And
although they would be liable to suffer from a foul atmosphere, we are inclined to think the effects would not be so lasting as in the chromates of lead. Like lead sulphide, the sulphide of thallium ranges from brown to brownish-black, or grey-black; ... Vienna Blue Paris Blue Azure Cobalt-ultramarine &c Is The
name now exclusively confined to that preparation of cobalt which has a base of alumina. It may, therefore, be not improperly called a blue lake, the colour of which is brought up by fire, in the manner of enamel blues. The discovery of this important... Violet De Mars Purple Ochre Or Mineral Purple Is A Dark Ochre
native of the Forest of Dean in Gloucestershire. It is of a murrey or chocolate colour, and forms cool tints of a purple hue with white. It is of a darker colour than Indian red, which has also been classed among purples, but has a similar body and op... Was Known In Ancient Times: The Romans Called It Auri Pigmentum Or
gold colour, whence, by corruption, its present name is derived. It is found in the native state in China and elsewhere, the best quality being in masses, consisting of plates of a fine golden hue, intermixed with portions of a vermilion or orange-red... We Have Adopted The Term Marrone Or Maroon As It Is Sometimes Called
for our second and middle semi-neutral, as applicable to a class of impure colours composed of black and red, black and purple, or black and russet, or of black and any other denomination in which red predominates. It is a mean between the warm, broke... Well To All Of These Must Be Superadded Durability When Used A
quality to which the health and vitality of a picture belong, and one so essential that all other properties put together without it are of no esteem with the artist who merits reputation. We have, therefore, given it a previous distinct consideration... Whatever The Practice Adopted Permanent Original Pigments Should Be
used as often as the case will admit; it being borne in mind, that a pigment may be compound, although its colour may be primary. As a rule, the less colours are mixed, the purer, brighter, and more lasting they will be found. ... When Inclining To Red Purple Takes The Name Of Crimson &c; And When
... While We Avoid The Compounding Of Contrasting Colours That Is The
colours must be kept distinct in the act of blending them, or otherwise they will run into dusky neutrality and defile each other. This is the case in blending and gradating from green to red, or from hue to hue--from blue to orange, or to and from co... White And Pure Black; The Grays Known To The Palette As Mineral Grey
and Payne's Grey having been incorrectly named. Practically, the nearest approach to a normal grey is furnished by Black Lead, which forms grey tints of greater permanence and purity than the blacks in general use, and is now employed for this purpose... White It Is Brought From Paris In The Form Of Drops Is Exquisitely
white, but of less body than flake white, and has all the properties of the best white leads. Being subject to the same changes, it is unfit for general use as a water-colour, though good in oil or varnish. TTITLE CREMNITZ WHITE, ... White Venetian White Hamburgh White Kremser White Sulphate
... Whiteness Even Contrast Has Its Contrast For Gradations Or
... With Cobalt Blue The Name Azure Has Sometimes Been Given To It
Varying exceedingly in quality and colour, the rougher kinds have been employed by the laundress, and in the making of porcelain, pottery, stained glass, encaustic tiles, &c.; as well as to cover the yellow tinge of paper. For this last purpose, howev... With Green It Forms The Tertiary Citrine And With Purple The Tertiary
... With It May Be Coupled Cadmium Orange A Colour Equally Brilliant And
stable, and equally without rankness or harshness, but of a true orange hue, admirably adapted for sunsets and the like. Last of all the fresh ... With Its Co-secondary Colour Green Purple Forms The Tertiary Olive;
and, when compounded with the remaining secondary, orange, it ... With Regard To Colour Then White In A Perfect State Should Be
neutral in hue, and absolutely opaque; that white being the best which reflects light most brilliantly. This property in white is called ... With Regard To Colours Individually It Is A General Law Of Their
relations, confirmed by nature and the impressions of sense, that those colours which lie nearest in nature to light have their greatest beauty in their lightest tints: and that those which tend similarly towards shade are most beautiful in their grea... With Regard To The Perspective Of Colours Or The Manner In Which They
affect the eye, according to position and distance, it is a branch of aerial perspective or the perspective of light and shade. This is distinguished from linear perspective, or the perspective of drawing, as drawing is from colouring; and they have p... With The Exception Of Madder Those Colours Mostly Affected By Light
... Without Change In This State It Was Called Giallolino Di Fornace And
was introduced as a pigment for artists, under the erroneous conception that vitrification gives permanence to colours, when in truth it only increases the difficulty of levigation, and injures their texture for working. We have spoken of Naples yello...