PREFATORY NOTE 



In revising this little book for use in Amer- 

 ica, I have tried to make as few alterations 

 as possible. It has been necessary to substi- 

 tute American books and American flowers 

 for the unfamiliar English ones mentioned by 

 Miss Coley, and to change somewhat her direc- 

 tions for pressing and mounting plants in 

 favor of methods which experience with my 

 own collection and in one of the great public 

 herbaria has convinced me are quicker and 

 better than those which she describes. But the 

 plan and spirit of the book are hers ; hers, also, 

 are its chief merits. 



C. A. WEATHEEBY. 



