PREFACE. 



THE first volume of Transactions of the Third Inter- 

 national Congress of Tropical Agriculture contains the 

 papers presented to the Congress on the following 

 subjects : Technical Education in Tropical Agriculture ; 

 Organization of Agricultural Departments in Relation 

 to Research; Agricultural Credit Banks and Co-operative 

 Societies; Sanitation and Hygiene on Tropical Estates; 

 Legislation against Plant Diseases and Pests; Cotton; 

 Fibres; Rubber. The present volume contains the 

 remainder of the papers selected for publication. 



As in the case of Vol. I, the papers contributed by 

 the Portuguese Section of the International Association 

 for Tropical Agriculture in Lisbon are not included, as 

 they have been printed separately and distributed to 

 members of the Congress. The papers from Portugal 

 relating to the subjects included in the present volume 

 are as follows: 



" Monographic de la Societe du Madal, Chr. Thams et 

 Cie." Par Theophile Bonnet. 



" La Guinee Portugaise." Par Carlos Pereira. 



" La Terre, le Capital et le Travail dans ITnde Portu- 

 gaise." Par Dr. Caetano Gongalves. 



" La Main-d'ceuvre aux lies de Cabo Verde." Par 

 Francisco de Paula Cid. 



" Organisation et Recrutement de la Main-d'oeuvre 

 dans la Province de St. Thome et Prince." Par Jose 

 Joaquim Xavia de Brito. 



" La Main-d'oeuvre indigene a Angola." Par J. A. 

 Alves Rogadas. 



" Organisation du Travail et Fournissement de la 

 Main-d'oeuvre dans la Colonie Portugaise de Timor." 

 Par Jay me Augusto Vieira da Rocha. 



" Contribution pour 1'Etude des Herbages d'Angola." 

 Par Joaquim Pratas. 



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