Catechu (Cutch) is an old Indian dye for cotton. It can also be used

for wool and silk, and gives a fine rich brown. It is obtained from

the wood of various species of Areca, Acacia and Mimosa trees. Bombay

Catechu is considered best for dyeing purposes.

Catechu is soluble in boiling water. It is largely used by the cotton

dyer for brown, olive, drab, grey and black. (See pp. 46, 47, 48.)