THIRTEENTH ANNUAL REPORT 29 



crease in imports and to the fact that the special investigation 

 of milks carried on by this laboratory, for the purpose of pre- 

 paring standards for infant feeding, has been completed and 

 the information made available. 



The Food and Drugs Regulation Act No. 2342 has increased 

 the correspondence and the number of consultations with im- 

 porters and manufacturing druggists, and this work will be 

 still greater when the imports of the Islands resume their normal 

 condition. As the Bureau of Science member of the food and 

 drug committee is the only one of that committee who has any 

 technical knowledge of chemicals, the greater share of such 

 work falls upon him. No statistical report of this work can be 

 made, but it very often necessitates criticism of a large number 

 of labels and the examination of a great deal of advertising 

 matter to determine whether or not it is in violation of the law. 



RESEARCH AND INVESTIGATION 



With Dr. D. S. Pratt on leave, this division has but three men, 

 and of necessity a large share of their time must be devoted 

 to routine work. However, some research work has been done. 

 Investigations under way, or practically completed, include : The 

 examination of calumpang, the Catanduanes nut, and further 

 work on the lumbang banucalag with drying tests of the oils ; 

 methods of rectifying ylang-ylang oil and some new discoveries 

 regarding the same; the destructive distillation of Philippine 

 woods with temperature control and a study of their products; 

 a study of tiqui-tiqui and its relation to beriberi ; a continuation 

 of the effect of storage on various Philippine distilled wines and 

 alcoholic distilled beverages ; the extraction of the perfume of 

 the flowers of the gardenia and of the camia ; the curative chem- 

 ical properties of a number of oils which have been confused 

 with true chaulmoogra oil, and an attempt to isolate a principle 

 which will cure leprosy; the fermentation and manufacture of 

 cacao from the dried bean ; and the nipa palm as a commercial 

 source of sugar. 



A scientific investigation of several industries in India and 

 Ceylon, which are the most advanced countries in the world 

 from the standpoint of tropical agriculture, has been carried on 

 in order to introduce into the Philippines, under the most favor- 

 able conditions, several industries, one of which is the papaya 

 gum, or papain, industry. Papain possesses several properties 

 superior to pepsin, which it is gradually replacing and which 

 will increase the dem.and for the gum. Parke, Davis & Com- 



