T O 



JOHN HOPE, M.D. 



Fellow of the Royal College 

 of Physicians, and Professor 

 of Botany and Medicine in 

 the Univerfity of Edinburgh. 



SIR, 



IF I have made any progrefs in die 

 ufeful and amufmg lludy of Bo- 

 tany, it muft be chiefly attributed 

 to the inftrudtion which I imbibed 

 from your ledlures ; to whom there- 

 fore, could I, with equal propriety, 

 infcribe this volume, as to him, who, 

 in reality, is the caufe of its cxift- 

 ence ? 



a 2 Commonly 



