200 Literary and Philosophical Intelligence, 



Dr. BARTON delivers three distinct courses of lec- 

 tures in the year : viz. 



I. In the winter- season, a course of lectures on the 

 MATERIA MEDICA, considering this science in 



its most extensive sense : 



II. In the winter-season, also, a course of lectures on 

 NATURAL HISTORY ; and 



III. In the spring and early summer, a course on BO- 

 TANY. 



I. MATERIA MEDICA. 



The lectures on Materia Medica commence at the 

 same time with the other winter-courses, viz., in tlie 

 first week of November, and continue to the close of 

 February, or the end of the first week in March. The 

 Professor delivers, at least, four lectures every week t 

 viz. on Mondays and Tuesdays^ and on Thursdays and 

 Fridays. These lectures are delivered between the 

 hours of ten and eleven o'clock, in the morning. In the 

 latter part of the season, he generally delivers five, and 

 sometimes six, lectures in the week. 



In these lectures, after giving an extensive view of 

 the primordia, the progress, and the present state, of the 

 Materia Medica, in different countries ; after an inquiry 

 into the various means which are employed by mankind, 

 both in the savage and in the civilized state, to attain a 

 knowledge of the medicinal or alimentary articles, which 



