Jaune De Mars Jaune De Fer Iron Yellow &c Is An Artificially





prepared iron ochre, of the nature of sienna earth. In its general

qualities it resembles the ochres, with the same eligibilities and

exceptions, but is more transparent, as well as purer, clearer, richer,

and brighter. Like them it is quite permanent. The colours of iron exist

in endless variety in nature, and are capable of the same variation by

art, from sienna yellow, through orange and red, to a species of purple,

brown, and black, among which are useful and valuable distinctions. They

were formerly introduced by the author, and have been received under the

names of Mars yellow, Mars orange, Mars red, Mars violet, and Mars

brown. All of them are brighter and purer than native ochres, and

equally stable. When carefully prepared, these pigments dry well in

proportion to their depth, are marked by a subdued richness rather than

brilliancy, and have the general habits of sienna earths and ochres.

Their faint washes possess the desirable quality of transparent

clearness.



We have occasionally found Mars yellow mixed with orpiment, or chromate

of lead, for the purpose of brightening the colour.



TTITLE NAPLES YELLOW



Was a compound of lead and antimony, anciently prepared at Naples under





It Is True That A Mixture Of Black And White Is Of A Cool Hue Because Juice Of A Plant Named Houng Hoa To Give It Brightness Of Tone facebooktwittergoogle_plusredditpinterestlinkedinmail

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