PHARMACEUTICAL 
BOTANY 
A TEXT-BOOK FOR STUDENTS OF 
PHARMACY AND SCIENCE 
BY 
HEBER. W.> YOUNGKEN, A.M., M.S., Ph.M., Ph.D. 
PROFESSOR OF BOTANY AND PHARMACOGNOSY AND DIRECTOR OF THE MICROSCOPICAL 
LABORATORIES IN THE PHILADELPHIA COLLEGE OF PHARMACY AND SCIENCE 
THIRD EDITION, REVISED AND ENLARGED 
WITH 238 ILLUSTRATIONS 
AND GLOSSARY OF BOTANICAL TERMS 
PHILADELPHIA 
P. BLAKISTON’S SON & CO. 
1012 WALNUT STREET 
