Order No. 418. 
THE SUGAR INDUSTRY IN THE ISLAND 
OF NEGROS. 
H ■ 
By Herbert S. Walker. 
145 pages, 10 photographic plates, and 1 map. 
Price $1.25 United States currency, postpaid. 
ABSTRACT OF CONTENTS. 
■ Page. 
Introduction; general and geographical infonuation rei?ardin<? Nc^^ros 9 
Mountains, rivers, and climate ° 11 
The sugar-producing districts of Negros '"'^11 14 
History of sugar production in Negros; varieties of cane grown in Negros; 
cane diseases and inrt(_-ct enemies; nationality of the planters; native 
lahor; dimeulties, past and pre.-iL'nt 16 
The soil of Negros compared with that of other sugar-producing countries.. 68 
Average composition of the purple or native sugar cane in Xegros; other 
varieties of cane grown in Xegros; cane in the Hawaiian T^^lands; 
i.g>'ptian cane; Java cane; Louisiana cane; West Indian cane; Negros 
as compared with otlier countries in respect to the quality of cane; 
desirability of introducing other varieties of cane 76 
ihe cultivation of sugar cane and the production of sugar as carried on 
at the. present time in Negros; preparation of the soil; preparati<m of 
the seed; planting; cultural operations after plantino-; cultivation of 
ratoon eanes; period of growth of the cane; cost of cultivation; cutting 
the cane; traiidporting the cane to the mill; cost of cutting the cane 
and transporting it to the mill 82 
Manufacture of sugar from the cane; extraction 'of "the juice'; manufacture 
ot sugar from the juice; quality of thu sugar produced in Negros; cost 
ot manufacture; transportation and sale of the sugar; estimate of aver- 
age cost of same .: - 92 
Quantitative experiments to determine theTeVgM"of"sugar''produced"'f^^^^^ 
a given weight of cane 114 
Calculation of the average cost of producing sugar TnNi^ros' by the meUiods 
now employed; cost for labor alone; estimate of fixed cliarges for main- 
tenance and depreciation of plant and interest on tlie capital invested; 
total cost of production -. ^ 123 
Possibilities for improvement; in eulthvaUonV in n7anufacture;"'a^^^^^^ 
or a change to modern methods of manufacture; the future of Negros; 
summary; appendix; an investigation to discover if diseases of the 
sugar cane exist in Negros 126 
Index 143 
M^.nn^^o^1n^^Z^r.f^^^^^,^^ ^^"* *^ ^^^ Business Manager. Philippine Journal of Science 
Manua. or to any of the below-listed agents. Please give Order Number. 
FOREIGN AGENTS. 
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lesbrs. A. M. & J. Ferguson. 19 Baillie Street. Colombo. Ceylon. 
CIRCULARS AND DESCRIPTIVE MATTER SENT ON APPLICATIOH. 
