PREFACE 



HE contribution of the matter here reprinted as a 

 I)art of a series of articles on the pharmaceutical 

 sciences in a weekly journal has necessitated a condensed 

 and ahhreviated mode of treatment. Nevertheless, it 

 represents fairly well the teaching of this portion of the 

 subject as followed in the authors class room, and intel- 

 ligently displays the relations of morphology and organ- 

 ography to the study of vegetable drugs. The attempt 

 has been made to allow richness of illustration to take 

 the place of that full treatment in the text which has 

 been precluded by the conditions under which the work 

 was performed. Few of the illustrations have hereto- 

 fore been used in botanical text books. Most of them 

 have been taken from nature. A large number have 

 been taken, by permission, from Engler & PrantPs Pflan- 

 zenfamilien and other sources, but specific acknowledg- 

 ments in connection with the individual figures have not 

 been possible in the serial form of the article. 



