FIFTEENTH ANNUAL REPORT 7 



have you advise us if there are any sulphur mines being worked here and 

 if same could be obtained in sufficient quantities for export. * * * 

 Thanking you in advance for your trouble in this matter. 

 Yours very truly, 



Manila, May 9, 1916. 

 Respectfully referred to the Director of the Bureau of Science, re- 

 questing such information as he may be able to furnish regarding the 

 commercial possibilities of Gulaman, a substitute for gelatine. 



Secretary to the Governor- General. 



Washington, D. C., May 6, 1916. 



* * * request information with regard to the production of pearl 

 shell in the Philippines, particularly the reported discovery of new beds in 

 the neighborhood of Polillo Island and of various parts of the Visayas, and 

 the method of marketing. They also desire references to any material 

 published on the subject within the last six or seven years. * * * 



Very truly yours, 



New York, May 1, 1916. 



* * * We are manufacturers of glue and therefore users of "Waste 

 parts sold for manufacture of glue" * * *. Can you inform us how 

 we can get in touch with the tanneries producing this glue stock in the 

 Philippines? 



Very respectfully, 



Manila, April 12, 1916. 

 Can you tell me of any local dye materials which the natives might be 

 induced to gather, not in export quantities but in comparatively small 

 amounts? Information regarding the kind, location, approximate quan- 

 tity, and method of obtaining any sort of dye material will be very much 

 appreciated. 



Very truly yours, 



Manila, March 20, 1916. 

 We are in receipt of the following communication: "There are unlimited 

 areas of mangrove swamp in the Philippines. Is there any prospect of 

 securing the extract or the bark in commercial quantities, at a price that 

 will permit business?" We shall greatly appreciate your information if 

 it is possible to secure this extract and if it is suitable for tanning purposes. 

 Thanking you in advance for your trouble in this matter, we beg to 

 remain, sir. 



Yours very truly, 



Cebu, P. I., March 10, 1916. 

 If you will favor me with information regarding coconut milk or "water;" 

 its value in coagulating rubber as recently discovered, etc., I shall greatly 

 appreciate the courtesy. 



Thanking you in anticipation of your esteemed reply. 

 Believe me, yours sincerely, 



New York, Ma/rch 10, 1916. 

 We * * * would respectfully enquire if you can furnish us 

 with any information regarding a new oil nut, known as "Chisochiton 

 Cumingianus." * * * 

 Yours very truly, 



