THE IMPERIAL STUDIES SERIES 
THE EXPLOITATION 
OF PLANTS 
BY VARIOUS WRITERS 
EDITED BY 
F. W. OLIVER, F.R.S. 
QUATY PROFESSOR OF BOTANY IN UNIVERSITY COLLEGE, LONDON 
MCMXVIL 
LONDON AND TORONTO 
J. M. DENT & SONS, LTD. 
PARIS: J. M. DENT & FILS 
& 
