ADVERTISEMENT. v 



trusted, the present edition will not be unacceptable 

 to the public, particularly to students attending the bo- 

 tanical lectures in this place, for whose use it was 

 originally undertaken. As the additions have been 

 made in a compendious manner, and are chiefly of the 

 mechanical kind, the editor flatters himself, they will be 

 ascribed to a desire of rendering the work more conve- 

 nient and useful ; and not to any motives of vanity, of 

 which he is wholly unconscious, at seeing his name 

 on the title page. 



BOSTOJV, FEBRUARY^ 1814. 



