10 THE BUREAU OF SCIENCE 



refers not only to cost and quality but to interchangeability, 

 that is, uniformity of dimensions of machine parts. The whole 

 world now recognizes the necessity of standardization, if time 

 is to be saved and if operation and production are to be kept at 

 a low cost. There is a large saving to the Government by the 

 elimination of a large assortment of different articles serving the 

 same purpose. It will take a long time to pass on the thousands 

 of articles needed by the Government. The war in Europe has 

 interfered with our sources of supplies. Prices of staple articles 

 have increased from 10 to 200 per cent, and of certain chemicals, 

 from 500 to 1,000 per cent; freight rates are steadily rising; 

 and prices are continually advancing. It is anticipated that the 

 work of the committee will be extended to include the investiga- 

 tion and redistribution of serviceable supplies, materials, and 

 equipment now on hand in the various branches of the service. 

 The successful solution of many of our local problems concerning 

 supplies and materials must be solved by local research. The 

 available information on many of these subjects is very meager, 

 and only a few general results are applicable to the Philippines ; 

 for example, there is practically* no material of construction used 

 in the Islands upon which there is not a great deal of work to 

 be done. Every branch of the Government that has to deal 

 with construction materials realizes the importance of studies 

 of this kind and the limited provision that has been placed at 

 the disposal of the Bureau of Science for carrying it on. 



ELECTROLYSIS COMMITTEE 



The Electrolysis Committee consists of the Superintendent 

 of Water Supply and Sewers of the city of Manila, the City 

 Electrician, the City Boiler Inspector, the Director of the Bureau 

 of Science, and a representative of the Manila Electric Railroad 

 and Light Co., of the Philippine Islands Telephone and Telegraph 

 Company, and of the Manila Gas Corporation, respectively. 

 Many of the members of the old committee have left Manila, and 

 a new committee is soon to be appointed to carry on the work. 

 Many interesting developments have occurred in the past, and 

 the interesting problem of determining the causes of several 

 aggravated cases of boiler condenser-tube corrosion in local 

 factories was presented for solution. The trouble in some cases 

 was attributed to stray currents. 



MANUFACTURE OF EXTRACT OF TlftUI-TIQUI 



Under the provisions of Act No. 2376 the Bureau of Science 

 has continued its work of preparing extract of tiqui-tiqui for 



