This section is from the book "A Text-Book Of Pharmacology, Therapeutics And Materia Medica", by T. Lauder Brunton. Also available from Amazon: A text-book of pharmacology, therapeutics and materia medica.
A powder which consists of the minute glands and hairs obtained from the surface of the fruits of Mallotus philippinensis (Rottlera tinctoria). India.
Characters. - A fine granular mobile powder, of a brick-red colour; it is with difficulty mixed with water.
Impurities. - Sand and earthy matters.
Test. - When boiled with alcohol the greater part is dissolved, forming a red solution. Ether dissolves most of it; the residue consisting principally of tufted hairs.
Dose. - 30 grains to 1/4 ounce.