PUBLICATIONS FOR SALE BY THE BUREAU OF SCIENCE, 
MANILA, PHILIPPINE ISLANDS 
K^JPORT OP THE INTEBNATIOIfAIi PIiACiUE CONFERENCE. 
Held at Mukden, April, 1911, yiider the auspices of 
the Chinese Government. 
Edited by Emcn Martini, G. F. BferRiE, iUTHtm. Stant,et, and EioSabd 
■ P. Strono. 
4S3 page,, IS plate* (2 colored, 4 half-tones, 12 charts and map,). 
Order No. 416. Cloth, $3.50: paper, $2.50 Onlted States currency, Postpaid. 
The proceedings of this internationar Conference and. inforrhation’ plained therefrom, together 
with the results of certain bacteriological: Investigations, constitute the .present report. 
Nothing hitherto has been published which gives such a complete and pomprehenslve account 
of the entire subject of pneumonic piagup. . ^ ^ 
Delegate from America (United States of), Austria-Hungary, France, Germany, Great Britain, 
Italy, Japan, Nlexloo, the Netherlands, Russia, and China attended the Conference. 
The Bureau of Scierioe of the.Government of the l^hilipplne island* has been appointed sole 
agent for the distribution of the printed prooeedings of the Internallbnal Plague Conference. 
THE SUGAR INHUSTBY IN THE ISLAND OP NEGROS. 
By Herbert S. Walker. 
Order No. 412. 
145 pages, 10 plates, 1 map. 
Paper, $1.25 United States currency, postpaid. 
Considered from the Viewpoint of practical utility, Mr. Walker’s Sugar Industry in the Island 
of Negros is one of the most imporiant papers published by the Bureau of SCIenoei This volume 
is a real contribution to thC subject; it is not a mere oompllatjpn, for the aulhoi- was in the field 
and understands the oonditibns . of Which he writes. The following, is a brief synopsis of the 
contents: l 
Tables of soil analyses, both chemical and physical; analyses of the cane, juice and bagasse; 
estimates based ort actual Iriformatiori as to the ooste of production and of cultivation; and esti- 
mates of the cost and location of possible central factories. T^je Island is considered by sugar- 
producing dislriots; the area of cultivation and the produption per hectare are given, and th* 
possibility for future expansion discussed. . « u . .i. 
The plates iiltistrale various phases of sugar industry from the ouUivalion of the field to the 
transportation of .sugar in native sailboats. > 
A MANUAL OP PHILIPPINE SILE CULTURE. 
By CKABLES S. Banks. 
' 53 pages, 20 plates. 
Order No. 413. Paper, $0.75 United States currency, postpaid. 
The silk industry Is parlioularfy 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 . Philiopine; Silk Culture yie have presented the results ipf several years actual 
work With silk-producing lanrae together with a description, of the new Philippine race. Halt-tone 
plates Illustrate in natural size silkworms in different stages of development, pupse; adult mplh*, 
samples of cloth made from eri silk, hand reel, and silk house. Other plates illustrate the 
various appliances used in raising silkyvOrms and in spinning silk; hand and power reels are 
Illustrated; working drawings are given for a silk house and for a hand reel. 
