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. SCOTT, F.E.S., 

 not only encouraged me to undertake the labour, but has always 

 been ready to help with his advice ; Mr A. GEPP, 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 HARTOG, D.Sc., 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. 

 MASSEE, Mr C. B. CLARKE, F.R.S., and Dr OTTO STAPF have 

 constantly been under requisition ; Mr I. H. BURKILL, Mr C. H. 

 WRIGHT, Mr G. E. M. MURRAY, F.K.S., and Mr N. E. BROWN, 

 have given me help with the greatest readiness and kindness; 

 other specialists to whom I have occasionally appealed, and 

 never in vain, are Mr J. G. BAKER, F.E.S., Professor I. B. 

 BALFOUR, F.E.S., Mr L. BOODLE, Dr H. T. BROWN, F.E.S., 

 Mr F. DARWIN, F.E.S., Mr F. ESCOMBE, Professor J. B. FARMER, 

 F.E.S., Mr W. B. HEMSLEY, F.E.S., Mr E. A. EOLFE, A.L.S., 



