LIBRARY 

 .♦♦ TLhC .♦. NEW YORK 



Blumni journal -^^ ~ 



Published monthly In the interest of the Aiumni Association of the College 



of Pharmacy of the City of New York. 



Pharmaceutical Department of Columbia University. 



PUBLISHED AT 43 FULTON ST., NEW YORK CITY. 



CHAS. A. LOTZ, Ph.G., Editor CURT. P. WIMMER, Phar D., Associate Editor 

 Vol. XVI. JANUARY, 1909. No. 1. 



COLLABORATORS. 



Charles F. Chandler, A.M., Ph.D., etc. Anton Vorisek, Phar.D. 



Henry H. Rusby, M.D. William Mansfield, Phar.D. 



Virgil Coblentz. A.M., Phar.M., etc. Clinton B. Knapp, M.D. 



George C. Uiekman, Ph.G., M.D. W. A. Bastedo, Ph.G., M.D. 



John Oehler, Ph.G. Frederick A. Leshe, Phar.D. 



William J. Gies, Ph.D. Charles W. Ballard. Ph.C. 



Carlton C. Curtis, Ph.D. Harry B. Ferguson, Phar.D. 



SUBSCRIPTION PRICE, INCLUDING POSTAGE: 

 Per Annum, Si.oo. Per Copy, lo Cents, 



All Original Contributions, Exchanges, Books for Reviews, Business and Editorial 



Communications, etc., should be addressed to The Alumni Journal, 43 Fulton Street, 



New York City. 



OIL OF LEMON. 



(Contribution from the Laboratory of E. R. Durkee & Co.) 

 By Sidney ALw, Phar. D. (N. Y. C. P., oi.) 

 Perhaps no essential oil in the V. S. Pharmacopoeia gives so much 

 trouble to the chemist, as Oil of Lemon. This might be accounted 

 for, due to several reasons : First, the unknown composition of the 

 oil; second, climatic conditions where it is grown; third, the method 

 of analysis and definitions as given in the U. S. P. 



I will first consider Oil of Lemon according to the definitions and 

 citral assay as given in the L. S. P. : 



"A volatile oil obtained by expression from fresh lemon peel, yield- 

 ing, when assayed b}- the process given below, not less than 4% of 

 aldehyde calculated as citral. It should be kept in well stoppered, 

 amber colored bottles, in a cool place protected from light. 

 )f: A pale yellow, limpid liquid, having a fragrant odor of lemon and 



an aromatic somewhat bitter taste. 



<j Specific gravity: 0.851 to 0.855 at 25°C. (77°F.). 



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