Order No. 412. 
THE SUGAR INDUSTRY IN THE ISLAND 
OF NEGROS. 
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 information regarding Negros 9 
Mountains, rivers, and climate , 11 
The sugar-producing districts of Negros Ip|, - ....I 14 
History of sugar production in Negros; varieties of cane grown in Negros; 
cane diseases and insect enemies; nationality of the planters; native 
labor; difficulties, past and present , 16 
The soil of Negros compared with that of other sugar-producing countries.. 68 
Average composition of the purple or native sugar cane in Negros; other 
varieties of cane grown in Negros ; cane in the Hawaiian Islands ; 
Egyptian cane; Java cane; Louisiana cane; West Indian cane; Negros 
as compared with other countries in respect to the quality of cane; 
desirability of introducing other varieties of cane 76 
The cultivation of sugar cane and the production of sugar as carried on 
at the present time in Negros ; preparation of the soil ; preparation of 
the seed; planting; cultural operations after planting; cultivation of 
ratoon canes ; period of growth of the cane ; cost of cultivation ; cutting 
the cane ; transporting 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 
of sugar from the juice; quality of the sugar produced in Negros; cost 
of manufacture ; transportation and sale of the sugar ; estimate of aver- 
age cost of same * 9.7 : 92 
Quantitative experiments to determine the weight of sugar produced from 
a given weight of cane .i'-.L? 114 
Calculation of the average cost of producing sugar in Negros by the methods 
now employed ; cost for labor alone ; estimate of fixed charges for main- 
tenance and depreciation of plant and interest on the capital invested; 
total cost of production — . 123 
Possibilities for improvement; in cultivation; in manufacture; advantages 
of a change to modem 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 
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FOREIGN AGENTS. 
The Macmillan Company, 64—66 Fifth Avenue, New York City, U. S. A. 
Messrs. Wm. Wesley & Son, 28 Essex Street, Strand, London, W. C., England. 
Mr. Martinus Nijhoff, Nobelstraat 18, The Hague, Holland. 
Messrs. Mayer & Muller, Prinz Louis Ferdinandstrasse 3. Berlin, N. W., Germany. 
Messrs. Kelley & Walsh, Limited, 32 Raffles Place, Singapore, Straits Settlements. 
Messrs. A. M. & J. Ferguson, 19 Baillie Street, Colombo, Ceylon. 
CIRCULARS AND DESCRIPTIVE MATTER SENT ON APPLICATION. 
