Gamboge

gam-boj', a common resin derived from a tropical, laurel-like tree of the East Indies. Commercial gamboge comes chiefly from Siam and Cochin China. The name is derived from Cambodia. Like turpentine, it is obtained by making a cut in the trunk of the tree, and collecting the bright yellow juice as it falls. The natives catch it in joints of the bamboo. They allow it to harden naturally, or else dry it over a fire. It is sent to market either in bamboo canes or in cakes. The former is preferred by reason of its greater purity. Gamboge has been used from time immemorial as a pigment to produce a bright yellow color in painting. Physicians prescribe it also as a remedy for tapeworm and other intestinal difficulties. An overdose is a deadly poison. See Gum