WORKS ON 



TROPICAL AGRICULTURE 



COCOA. By Dr. C. J. J. VAN Hall, Chief of the 

 Botanical Laboratories, Buitenzorg, Java. Illus- 

 trated. 8vo. {Autumn, 19 14. 



Dr. Van Hall intends his book to play a supplementary part 

 in the education of the cocoa-planter, supplying the information 

 which is not to be acquired by practical work in the field. The 

 eleven chapters are headed respectively : Historical; Geographical 

 Distribution and Climatic Conditions ; The Chemistry of Cocoa 

 and Cocoa Soils ; The Botanical Characteristics of the Cocoa 

 Plant ; Varieties of Cocoa ; The Cultivation of Cocoa ; Ferment- 

 ation, Washing and Drying ; Diseases and Enemies ; Cocoa- 

 Growing Countries ; Commerce of Cocoa ; and Notes on Cocoa 

 and Chocolate Industry. 



SPICES. By Henry N. Ridley, C.M.G., F.R.S. 

 Illustrated. 8vo. 8s. 6d. net. 



NATURE. — " A book of this kind must appeal mainly to planters 

 in the tropics, and Mr. Ridley's extensive experience of the needs of 

 this class of readers has enabled him to produce a volume which 

 is a valuable addition to the rather scanty literature of tropical 

 agriculture." 



AGRICULTURAL ECONOMIST.—" Fascinating reading as 

 well as valuable information for those engaged in the cultivation of 

 spices are furnished by Mr. Ridley's work." 



ECONOMIST. — " Mr. Ridley's book, besides giving a great deal 

 of interesting historical information, contains much valuable technical 

 and statistical matter, which render it of great use both to the planter 

 of spices and to the student of commerce." 



LONDON : MACMILLAN AND CO., Ltd. 

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