Gums.

Gum, a good deal resembling that of gum arabic, is extant in Mr. Thozet's collection from Acacia harpophylla (F.M.), and Acacia Bidwillii (Benth.), and in Dr. Mueller's collections from Acacia pycnantha (Benth.), Acacia decurrens (Willd.), and Acacia homalophylla (Cunn.). The number of arborescent species of Acacia furnishing gum is not inconsiderable. It has been exported for cotton-printing, glueing purposes, and other applications. The species indigenous in Australia are of greater celerity of growth than the African gum-acacias. The supply can be rendered abundant.