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tioners and for the various branches of tne Government, and 

 of other materials of agricultural, industrial, and medical use 

 and interest. There is extensive information along many lines 

 in the Bureau of Science that should effect a large annual saving 

 to the inhabitants of these Islands, if it were utilized. Each 

 year shows more clearly that thousands of pesos could be saved 

 annually to the sugar growers alone, if they had the scientific 

 information necessary with regard to planting, harvesting, and 

 recovering sugar most efficiently and economically. More per- 

 fect extraction and more careful handling of the juice will in- 

 crease the production and improve the quality of the sugar, even 

 if there is no increase in the yield or in the planted area. The 

 best way to improve and increase the sugar production of the 

 Philppine Islands is by the careful application of scientific knowl- 

 edge. The Bureau of Science has carried on an investigation of 

 tanning methods in the Philippine Islands, working under con- 

 ditions as they prevail in Philippine tanneries, and has produced 

 leather free from the disagreeable odor characteristic of Phil- 

 ippine leather and equal in quality to the imported product. The 

 local tanners are being instructed in methods that will avoid 

 waste and greatly increase the production of leather. The in- 

 troduction of these methods will also assist in conserving the 

 supply of camanchile bark, which is rapidly becoming exhausted 

 and even now is difficult to secure. Under the provisions of 

 Act No. 2376 the Bureau of Science has continued its work of 

 preparing extract of tikitiki for the treatment of infantile beri- 

 beri. The properties and some of the uses of oils produced from 

 lumbang, kapok, cashew, castor bean, tree-cotton seed, physic 

 nut, pili, calumpang, and cato have been determined. The dry- 

 ing qualities of the lumbang oils have been examined. Chaul- 

 moogra oil and its administration in the treatment of leprosy have 

 been studied. The Bureau of Science has shown conclusively 

 that papaya gum made in the Philippines is equal, if not supe- 

 rior, both regarding color and activity, to any now in the world's 

 market. Practical and efficient methods of sterilizing containers 

 used in marketing natural or carbonated waters have been 

 devised. The Bureau of Science has investigated the suitability 

 of the waste from abaca, or Manila hemp, cogon grass, and 

 various other substances for paper pulp. It has published an 

 article on the destructive distillation of waste woods of various 

 kinds and the products obtained as a result of this distillation 

 and also one on the methods that will insure maximum yields of 

 alcohol from molasses. It has introduced the silkworm industry, 

 the desirability of extending which in the Archipelago becomes 



