8 GENERAL REMARKS 



As it is inevitable tliat several will escape attention, we 

 must claim the reader's indulgence and ask him to take into 

 account only our wish to render this work of value to those 

 who are starting work in the Tropics. 



In order to make reference easier we shall retain the 

 established divisions, i.e., Papilionacec-e, C^esalpine^, and 

 Mimoseae, and we shall class all plants among these sub- 

 families without regard to the subdivisions already 

 enumerated, which are useful to know, but which have no 

 first-rate importance so far as the culture and exploitation 

 of these plants are concerned. 



