FOURTEENTH ANNUAL REPORT 39 



general for a short period, and there was an inclination on the 

 part of bakers to use it. An interesting result of this campaign 

 was that in no case was any sample of bakery product found to 

 be adulterated with saccharine. Only prompt action prevented 

 its use from becoming more widespread. 



Iloilo sugar laboratory. — During the year 3,560 samples of 

 sugar were polarized at the Iloilo sugar laboratory. This shows 

 the eagerness with which both producers and dealers avail them- 

 selves of umpire polariscopic analysis in case of dispute and as 

 a basis for valuation. Through the Iloilo sugar laboratory we 

 have been able to give instruction with regard to mill practice 

 and more perfect recovery of sugar. As much assistance as 

 possible in many factories has been given in order to secure the 

 best results with the facilities at hand. 



My recommendations with regard to the extension of the work 

 of the Iloilo sugar laboratory are made separately on page 53. 



DIVISION OF MINES 



Persoymel. — Mr. Wallace E. Pratt, chief of the division of 

 mines, after some five and one-half years of continuous service, 

 was granted leave of absence with permission to visit the 

 United States and left on the July transport for San Francisco. 

 In order that he might accept a Yale fellowship in economic 

 geology and spend six months in study, which will greatly in- 

 crease his efficiency in the Philippine Islands, I have extended 

 his leave of absence, without pay, until July, 1916. Mr. V. E. 

 Lednicky has been acting chief of the division during the absence 

 of Mr. Pratt, Mr. John P. Goldsberry has been appointed a 

 geologist in the Bureau of Science ; he sailed from San Francisco 

 on December 18 and should be ready for duty in January. The 

 division of mines has been seriously handicapped by a small 

 staff during the past year, but an attempt has been made to 

 handle all routine work presented. With the assistance of men 

 in other divisions this has been accomplished without serious 

 confusion. 



Routine. — A greatly increased number of consultations have 

 been held, and during the year 460 assays, 29 bullion smeltings, 

 and 266 placer weighings have been performed. Two milling 

 and cyanide tests also were made. All of this work shows a 

 marked increase over the previous year, demonstrates the assist- 

 ance which the Bureau of Science can render to those interested 

 in mining, and indicates a growing confidence on the part of the 

 mining men. The employees in the division of general, inor- 

 ganic, and physical chemistry have rendered valuable assistance 



