PREFACE. 



THE volume of Proceedings of the Third International 

 Congress of Tropical Agriculture (London : John Bale, 

 Sons and Danielsson), which has been published 

 separately, includes the President's Address, abstracts 

 of the principal papers prepared by the authors, 

 and full reports of the discussions which followed the 

 reading of the papers submitted to the Congress. The 

 present volume of Transactions contains the first in- 

 stalment of the papers communicated to the Congress, 

 the remainder of which will be published in a second 

 volume. The difficulties of the present international 

 situation, which arose a few weeks after the conclusion 

 of the Congress in July, 1914, are chiefly responsible 

 for the absence from these Transactions of a few papers 

 communicated to the Congress. 



The papers contributed by the Portuguese Section of 

 the International Association for Tropical Agriculture 

 are not included, as they have been printed separately 

 (Imprimerie " A Editora Limitada," Largo do Conde 

 Barao, 50, Lisbonne), and distributed to members of 

 the Congress. The papers from Portugal relating to 

 the subjects included in the present volume, which have 

 already been issued, are as follows: 



" Rapport sur le Credit agricole dans les Colonies 

 portugaises." Par Henrique Jose Monteiro de Men- 

 donca, Jose Dionisio C. de Sousa e Faro, et Ernesto 

 Jardim de Vilhena. 



" Contribution pour 1'Etude des Cotons des Colonies 



portugaises." Par le Professeur C. de Mello Geraldes. 



" Projet pour I'Etablissement d'une Methode ration- 



nelle pour la Determination de la Valeur commerciale 



des Textiles." Par le Professeur C. de Mello Geraldes. 



" Contribution pour 1'Etude des Plantations de 



Caoutchoutieres a Angola." Par le Professeur C. de 



Mello Geraldes. 



