one of the colours called simple or primary: being one of the shades into which the light naturally divides itself when refracted through a prism. See CHROMATICS.

in Dyeing, see that article.—Some reckon six kinds or casts of red, viz. scarlet-red, crimson-red, madder-red, half-grain red, lively orange-red, and scarlet of cochineal; but it is easy to see that there can be but one proper species of red; namely, the reflection of the light exactly in such a manner as it is refracted by the prism; all other shades being adulterations of that pure colour, with yellow, brown, &c.

in Heraldry. See GULDS.

RED-Bird. See Muscicapa, Ornithology Index.

RED-Breast. See Motacilla, Ornithology Index.

RED-Book of the exchequer, an ancient record or manuscript volume, in the keeping of the king's remembrancer, containing divers miscellaneous treatises relating to the times before the conquest.

RED-Lead. See Chemistry Index.

RED Precipitate of Mercury. See Chemistry Index.