The supply of powder can be regulated to such a nicety that Mr

Leggett claims he can make half a pound of Lon don purple cover an acre. Science, XIII. 394. Madder purple, a very deep rich lake, of great body and intensity, prepared from madder. The color, though not brilliant, is transparent and durable. Also called purple rubiate and Field's purple . - Mineral purple. Same as Mars violet (which see, under violet ). Also called purple ocher. Orchil purple, a dye-color obtained from several varieties of seaweed. It is very beautiful, but not durable, and is little used since the introduction of tar-colors.-Perkins's purple. Same as mauve .-Purple of Amorgos, a celebrated dye obtained from the Grecian island Amorgos, believed to have been a kind of orchil. - Purple of Ca ius [named from the Danish physician Andreas Ca ius , died 1673), a compound oxid precipitated when solutions of the chlorids of gold and tin of purple .] 1. In med., petechiæ, or spots of livid red on the body, such as appear in certain diseases; purpura. All the myracles to she we it were to longe; There is many mo full great that I do not reherse, As pestylence, purpyls , and agonys strong.