PUBLICATIONS FOR SALE BY THE BUREAU OF SCEENGE, 

 MANILA, PHILIPPINE ISLANDS 



BEFORTOF THE IXTERNATIONAIi PLAGUE CONFERENCE. 



Held at Mukden, April, 1911, under the auspices of 

 the Chinese GoTermuent. 



Edited by Ebich Maetixi, G. F. Petbie, Abthub Sia^^ley, and Richabd 



P. Steong. 



4S3 pages, IS plates (2 colored,, 4 haif-tones, 12 charts and maps). 



Order No. 416. 



Cloth, $3.50; paper, $2.50 United States currency, postpaid. 



The proceedings of this International Conference and Information gained therefrom, together 

 with the results of certain baoterioldgical investigations, constitute the present report. 



. Nothing hitherto has been published which gives such a complete and comprehensive account 

 of the entire subject of pneumonic plague. 



Delegates from America (United States of); Austria-Hungary, France, Germany, Great Britain, 

 Italy, Japan, Mexico, the Netherlands, Russia, and China attended the Conference. 



The Bureau of Science of the Government of the Philippine Islands has been appointed sole 

 agent for the distribution of the printed proceedings of . the Internaitonal Plague Conference. 



THE SUGAR INDUSTRY IN THE ISLAND OF NEGROS. 



By Heebekt S. Walkee. 



145 pages, 10 plates, 1 map. 



Order No. 412. 



Paper, $1.25 United States currency, postpaid. 



Considered from the viewpoint of practical utility, Mr. Walker's Suflar Industry in the Island 

 of Negros is one of the most important papers published by the Bureau of Science. This volume 

 is a real contribution to the subject; It is not a mere compilation, for the author v*as in the field 

 and understands the conditions of which he writes. The following is a brief synopsis of tho 

 contents: 



Tables of soil analyses, both chemical and physical; analyses of the cane, juice and bagasse; 

 estimates based on actual information as to the costs of production and of cultivation; and esti- 

 mates of the cost and location of possible central factories. The island is considered by sugar- 

 producing districts; the area of cultivation and the production per hectare are given, and the 

 possibility for future expansion discussed. 



The plates illustrate various phases of sugar industry from the cultivation of the field to the 

 transportation of sugar in native sailboats. 



A MilNUAIi OF PHILIPPINE SILK CULTURE. 



By Charles S. ^.A^'KS. 



53 pages, 20 plates. 



Order No. 413. 



Paper, $0.75 United States currency, postpaid. 



The silk Industry is particularly adapted to be undertaken by persons with small capital, and 

 like the making of hats in the Philippine Islands it should thrive with a little encouragement. 



In A Manual of Philippine Silk Culture we have presented ihe results of several years' actual 

 work with silk-producing larvse together with a description of the new Philippine race. Half-tone 

 plates illustrate in natural size silkworms in different stages of development, pupae, adult moths, 

 samples of cloth made from eri silk, hand reel, and silk house. Other plates illustrate the 

 various appliances used in raising silkworms and In spinning silk; hand and power reels are 

 Illustrated; working drawings are given for a silk house and for a hand reel. 



