

iTIONS FOE SALE BY THE BUREAU OF SCIENCE, 

 MANILA, PHILIPPINE ISLANDS 



pop THE INTERNATIOXAL PLAGl K COXFEBEN^CE. 



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

 the Chinese Government. 



Seici-i jMaktim. O. F. PiTTiuE. .VnTinjF. SlAXLEY, a^;d Eujuaeli 

 p. Steoko. 



paflei, IS plates (2 colored, 4 half-tones, 12 charts and maps). 



Cloth, $3.50; paper, $230 United StaUs currency, postpaid. 



■ The proceedlnBS of this Intornallonal Conference and Information gained therefrom, toaether 

 iilth the results of certain bacteriological Investiflations, constitute the present report. 



Nothing hitherto has been published which gives such a complete and oon-.prehensive account 

 of the entire subject of pneumonic plague. 



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

 Jtaly, Japan, Mexioo, 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 International Plague Conference. 



THE SUGAK INDUSTRA^ IH THE ISLAND OF NEGROS. 



By Heeeert S. Walkee. 

 145 pages, 10 plates, 1 map. 



Order No. 412. 



Paper, $1.25 United Slates currency, postpaid. 



Considered from the viewpoint of practical utility, Mr. Walker's Sugar 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 & mere compilation, for the author was in the field 

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

 contents: _ 



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

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

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

 Rroduoing 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^5ugar:indu3try from the cultivation of the field to the 

 transportation of sugar in native sailboats. 



A M.'iNUAL OP PHIIjIPPIXE SltK CXTLTURE. 



By Charles S. Ba?(ks. 



53 pages, 20 plate 



Order' No. 413. 



Paper, $0.75 United States 



enoy, postpaid. 



The silk industry is parlloularly adapted to be undertaken by persons with small capital, and 

 like the making of hats !n the Philippine Islands it should thrive with a little encoaragement. 



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

 work with sllk-producihg larva together with a desoriollon of the new Philippine, race. Half-lone 

 pifttes Illustrate In natural size silkworms in different stages of development, pups, adult moths. 

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

 various spplianoes used in raising silkv/orms and in spinning silk; hand and power reels a.'- 

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



