PREFACE 
capital letter, adjectives and other parts of speech by a small letter ; 
exceptions being adjectives drawn from a proper name as “ Dar- 
winian,” and those which form part of such terms as “ Conjoint 
Bundle.” Greek is quoted in the original characters, Latin in 
italic, or where otherwise it would be doubtful, it is indicated ; this 
is further explained on the page facing page 1 of the Glossary ; the 
use of small capitals refers the reader to the word so printed for 
a definition of the term, or to a correlative term. 
The Appendixes hardly need any detailed explanation ; it will 
be seen that the Bibliography is a selected list of works chiefly 
in alphabetic form, arranged chronologically. General dictionaries, 
and large works in which technical terms form only a small pro- 
portion of the whole, have been omitted. 
The pleasant task now remains of acknowledging most heartily 
and gratefully the invaluable help I have derived from a host of 
friends during the progress of the work. Dr D. H. Scorv, F.RS., 
not only encouraged me to undertake the labour, but has always 
been ready to help with his advice; Mr A. Gupp, of the British 
Museum, has read the whole of both editions in proof and part in 
revise; he has spared neither time nor trouble to ascertain the 
correctness of the derivations and accents throughout, as well as 
in the special branch of descriptive botany which is under his 
charge ; Professor HArtoc, D.S8c., of Cork, improved many defini- 
tions, and Professor H. H. W. PEARSON helped in the compilation of 
the work in many ways. To these four gentlemen I am especially 
indebted for their kindly undertaking a troublesome task. 
Other friends at Kew and the British Museum have also 
generously aided me when drafting the manuscript. Mr G. 
Massegz, Mr C. B. Ciarxe, F.R.S., and Dr Otro Stapr have 
constantly been under requisition; Mr I. H. Burxiui, Mr C. H. 
Wricat, Mr G. R. M. Murray, F.R.S., and Mr N. E. Brown, 
have given me help with the greatest eadingds and kindness ; 
other specialists to whom I have occasionally appealed, and 
never in vain, are Mr J. G. Baxer, F.R.S., Professor I. B, 
Batrour, F.R.S., Mr L. Boopte, Dr H. T. Brown, F.RS., 
Mr F. Darwin, ERS, Mr F. Escomps, Professor J. B. FARMER, 
F.R.S., Mr W. B. Hewstey, F.R.S., Mr R. A. Rours, ALS., 
x 
