PREFACE. 
—_— 
Durine the time the author has had the 
honor of occupying the Chair of Materia Me- 
dica and Botany in the National College of 
_ Pharmacy, he has given much thought and at- 
tention to the most feasible methods of impart- 
ing the knowledge he has formulated to the 
students before whom he lectured. 
He now believes that he has collected from 
the larger works of the most reliable authority 
all the material necessary for practical use, and 
presents this work with the hope that it will 
convey to the student and reader a clear and 
comprehensive idea of each subject treated 
from a botanical, medical and physiological 
standpoint. 
The author is indebted to Prof. H. E. Kalu- 
sowski for suggestions which will add much 
to the value and accuracy of the book. 
