U. S. Department of Agriculture, 



Bureau of plant industry— Bulletin No. 90. part iv. 



B. T. Galloway, Chirf of Uvnav. 



m mm^ action or joonson grass. 



BY 



ALBERT C. CPxAWFORD, 

 Pharmacologist, Poisonous Plant Investigations. 



LIBRARY 

 NEW YORK 

 BOTANJCAL 



GARDEN. 



Issued January 17, 1906. 



WASHINGTON : 



G O V E K N .^1 E N T P K I N T 1 N ( i ( ) F F ICE, 

 1906. 



