ASA GRAY, M.D.,LL.D., 



FISHER PROFESSOR OF NATURAL BISTORT IN HARVARD isnn:-iTY, 



Tills VOLUME IS INSCBIBED, 



IX REMEMBRANCE 



OF A LONG AM) PLEASANT INTERCOURSE IN 

 BOTANICAL PURSUITS, 



BY HIS CORDIAL FRIEND, 



THE AUTHOR. 

 Columbus, Ohio, August, 18C4. 



