PREFACE. 
IX 
Marshall Ward, and Bayley Balfour, Sir William Thiselton- 
Dyer, and Messrs Francis Darwin and I. H. Burkill, besides 
Messrs Lang, Seward, Tansley, Lynch, Church, Moore, 
Dewar and others. Since it appeared, I have received 
many valuable suggestions from the above and other friends, 
notably Drs Augustine Henry and A. J. Chalmers, Pro- 
fessors G. L. Goodale and J. B. Farmer, and Mr R. H. Lock. 
As with the former edition, so in this, I am indebted to 
Mr A. E. Shipley for his kind cooperation in many ways. 
JOHN C. WILLIS. 
Royal Botanic Gardens, 
Peradeniya, Ceylon, 
November lyth) 1903. 
PREFACE TO THIRD EDITION. 
In this edition Part II has been slightly enlarged and, 
to a great extent, rewritten, while Part III has been largely 
added to, with the view of bringing in all technical terms 
likely to be met with, and colonial and American names of 
plants. In addition to others already mentioned I am 
much indebted to Mr A. M. Smith for revising proofs of 
Part III and to Professors H. H. W. Pearson and 
R. H. Yapp for corrections, etc. 
J. C. W. 
Peradeniya, Ceylon, 
December , 1907. 
