PREFACE 



TO 



THE NEW EDITION. 



The favour with which the previous editions of this work have 

 been received has necessitated a reprint. Some changes and 

 modifications having been made this year in the syllabus 

 issued by the Science and Art Department, the opportunity 

 has been taken of thoroughly revising the work. 



Chapters have been added on the movement of water in 

 plant tissue, on the influence of heat and light upon growth, 

 and the irritability of plants. The orders Boraginacese, Primu- 

 laceae, and Amaryllidacese have also been substituted in the 

 new syllabus for the Chenopodiacese, Orchidacese, Grarainaceae, 

 and Cyperaces. 



In the present edition, whilst the old orders are retained, 



the new ones, to meet the requirements of the Department, 



have been added. 



^ H. EDMONDS. 



Brighton : October 1888. 



