PtrsnCATIONS foe sale bt the bheeait of science, 
MANHA, PmtlPPIHE ISLAHDS/ 
BUPORT pp THE itNTEBNATIQNAIi PliAGUE COSPPEBEIfCE. - 
Held at Mukden, April, 1911, under tke auspices of 
' ^ the Chinese Go-yiernment, ; , ^ ' 
Edited by Richabd P. Stbong. . , - 
' 485 page*, 18 plate* (2 colored, 4 halMonea, 12 chart* and maps). 
Order; No. 4l6b Cloth, f3.50; Paper, A2iS0;Uhited State* currency, postpaid. 
The proceeding* of thl» International Conferende and .Information gained' therefromi together 
with the reeulte of certain baoterlolonlcaJ Investigations, constitute the present report. . 
, Nothing hitherto ha* been, published Which gives such a complete and oomprehentive account 
of the. entire subjeol of pneumonlo plagpe. • ■ . < : ■ ' 
Delegates from .America (United Stated of),:' Austria,Hungary,,Franoe, Germany, Great Britain, 
Italy, Japan,. Mexico,, the Netherlands, .Russia, and China attended the /Conference. . 
< The Bureau ef Scietioe of the Government'.of the .Philippine Islande has .h.een appointed toie 
agent for tha distribution cf the 'printed proceedings of the International Plague Conference. - .< 
THE Sp^GAB INDTjrSTBY JX THE ISliAND OF NEGBOg. 
' ' ■ By' HeBbeet S. WAtKEB. 
145 pages, 10 plates, 1 map. 
No. 412. 
. Paper,' $1.25 United States currency, postpaid.. 
Considered from the viewpoint of' praotloal utility; Mr. Welker’e Sugar; industry In the Island, 
of Negros Is one of the most Important papers published by .the. Bureau of Soienoe. This volume' 
is a real contribution'. to the 'subjeotj. It Is; not. :a mere compilation, -for. the author was in .lhe .field / 
and underst^inds the oon'ditions of Which writes. The following. . Is a brief synopsl* of the 
opntents; ^ ' , , , ^ , 
: Tables of soil analyses, bptli otemloal and, Physical analyses of the cane, jploe and bagasse; 
OalimateSi based on aotijal Informatipn 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 bycugHr. 
producing' districts; the 'area of . cultivation ''and the production per hectare are given, and the.. 
Possibility for future ercnansion discussed. . 
The plates Illustrate various phases of sugar Industry from the oultivation of the field; to the 
traneporiation of sugarr-in native .sailboats. . 
A MANUAIi OP PHlIilPPINE SILK CULI^UBE- 
By ClHAELES'S. Banks. 
55 pages, 20 plate*. 
Order No. 415. , Paper, $ 0 . 75 , United Stale* currency, postpaid. 
. The Silk Industry I* 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 PhlllopUie SilkiCullure we have presented the-result*. of several yaars' .actual 
werkiWlth sllk-produclng. larva .together with a description of thyi new Philippine rape, . HalMono 
plaW iHuslrele in- natural . sl?«ySllkworms In - different stages of deyelopmertl, pupse, adult mpths,; 
samples of cloth made from ' erl silk, hand reel, and *llk house. .Other, platee illustrate the, 
various appliances, used. In 'ital'slhg ‘Silkworms and in spinning silk; hand' ai>d power .feels efo 
Illustrated; working dfawlngs are given for a silk house and for , a hand reel. , , . , , 
