PREFACE TO THE SECOND EDITION. 



THE first edition of this work was also the first book dealing 

 exclusively with the Cultivation and Preparation of Para Rubber 

 published in the English language. Although less than four 

 years old, it is out of print, and owing to the rapid development 

 of the rubber-planting industry is to a large extent out of date. 



The second edition includes all the latest authentic informa- 

 tion, and covers a far larger range of subjects likely to be of 

 interest or utility to those in any way connected with the rubber 

 industry. 



To better enable this to be effected, all the principal works 

 dealing with the subject have been consulted, among them 

 being : 



Seeligmann's " Le Caoutchouc et la Gutta Percha " ; Weber's 

 " Chemistry of India-rubber" ; Journal d' Agriculture Tropicale ; 

 Obach's "Cantor Lectures"; India-rubber Journal ; Tropical 

 Agriculturist ; Bulletins of the Royal Botanic Gardens, Kew, 

 Imperial Institute, Royal Botanic Gardens, Ceylon, Straits 

 Settlements and Federated Malay States, Department of Agri- 

 culture for the West Indies, Institute of Commercial Research in 

 the Tropics, Liverpool ; Journal of Botany ; Der Tropenpflanzer ; 

 Wright's " Hevea brasiliensis " ; Revue des Cultures Coloniales ; 



