MANUAL 



MEDICAL BOTANY OF NORTH AMERICA 



LAURENCE JOHNSON, A.M., M.D, 



lECTURER ON MEDICAL BOTANY, MEDICAL DEPARTMENT OF THE UNIVERSITY OF THE CITY OP NEW 



YORK : FELLOW OF THE NF-W YORK ACADEMY OF MEDICINE, AND OF THE NEW YORK AOAD- 



KMY OF SCIENCES : MEMBER OF THE COMMITTEE OF REVISION OF THE PHARMACOPCEIA 



OF THE UNITED STATES, MEMBER OF THE TORKEY BOTANICAL CLUB, ETC. 



NEW YORK 

 WILLIAM WOOD & COMPANY 



56 & 58 Lafayette Place 

 1884 



