Bulletins On the Rubber Producing Capacity of the Philippine Islands
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>, GROWING IN GREAT ABUNDANCE ON ISLANDS OF MINDORO AND CULION. FIG. 33.— RUBBER VINE FOUND IN TAWI TAWI, BASILAN, AND MINDANAO. SPECIES UNDETERMINED. -RUBBER VINE IWILLUGHBEIA FIRMA BLUME'. THIS SPECIES SUPPLIES MOST OF THE RUBBER PRODUCED IN BORNEO. ■ ^^d^^^l fll^^^B ^ I 1 J»ii la.iiiMIMMf^i^^^^^B ■■p^gn iVfl BIm FIG. 35.— PIECE OF DRY BARK FROM RUBBER VINE, SHOWING THE IMMENSE NUMBER OF RUBBER FIBERS IN THE INNER BARK. -METHOD OF TAPPING A PARA RUBBER TREE THIRD DAY AFTER TAPPING, EXPERIMENT...AL GARDEN, BUITENZORG, JAVA. -PLANTATION OF PARA RUBBER TREES, PRODUCING SEED, BOTANICAL GARDEN, SINGAPORE. BUREAU OF FORESTRY. (Bulletin No. 3.) A COMPILATION OF NOTES ON INDIA RUBBER AND GUTTA-PERCHA. By Capt. Geouge P. Ahern. letter of transmittal. Bureau op Forestry, Manila, N^ovcmber 15, 1905. Sir: I have the honor to sul^mit herewith for your consideration a (•oni))ilation of notes on rubber and gutta-percha, giving data concerning the requirements, growth, and treatment of the most important rubber-producing species in different ])arts of the world.
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