Besides rubber, the forests produce a great variety of cabinet and construction woods, ivory-nuts (from the tagua palm, Phytelephas macrocarpa), toquilla fibre (Carludovica palmata) for the manufacture of so-called Panama hats, cabbage palms, several species of cinchona, vanilla and dyewoods
That hitherto adopted by the Indian Government for the preparation of the cinchona febrifuge (see below) is simple, but the whole of the alkaloid present in the bark is not obtained by it.
In consequence of the high price of the alkaloid an attempt was made some years ago by the Government of India to manufacture from cinchona bark a cheap febrifuge which should represent the alkaloids contained in the bark and form a substitute for quinine.
This mixture is known as cinchona febrifuge, and is prepared chiefly from C. succirubra, which succeeds better in India than the other species in cultivation, and grows at a lower elevation, being consequently procurable in large quantities at a comparatively low price.
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