IMPERIAL INSTITUTE SERIES 

 OF HANDBOOKS TO THE 

 COMMERCIAL RESOURCES OF 

 THE TROPICS, WITH SPECIAL 

 REFERENCE TO BRITISH 

 WEST AFRICA 



Issued under the authority of the Secretary of 

 State for the Colonies 



EDITED BY 



WYNDHAM R. DUNSTAN, 

 C.M.G., LL.D., F.R.S. 



Director of the Imperial Institute ; President of the 

 International Association for Tropical Agriculture 



