VOL. XVII. 



SEPTEMBER, 1910. 



No. 9. 



Contents 



EDITORIAL Ill 



DIFFERENTIAL DETERMINATION OF CRUDE 

 DRUGS > 15 



By J. A. Stkffbns, Phar. D. 



COLUMBIA UNIVERSITY-EIGHTIETH ANNUAL 

 COMMENCEMENT OF THE COLLEGE OF 

 PHARMACY OF THE CITY OF NEW YORK 



VALEDICTORY ADDRESS 1 19 



{Continued from A zigust Edition) 



OBITUARY 122 



Published flonthly by the Alumni 

 Association of the College of Phaf" 

 macy of the City of New York- 

 Pharmaceutical Department of Col- 

 umbia University. 



