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L.IBRARY 

 (NEW YORK 



botanical 

 oaruen. 



... Xtbe ... 



Blumni S^ournal 



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. FEBRUARY, 1909. No. 3. 



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. Diekman, Ph.G., M.D. W. A. Bastedo, Ph.G., M.D. 



John Oehler, Ph.G. Frederick A. Leslie, 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, $i.oo. Per Copy, lo Cents. 



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

 Communications, etc., should be addressed to The Alumni Journal, 48 Fulton Street, 

 New York City. 



OIL OF LEMON. 



]5y Sydney May, Phar. D. (N. Y. C. P.). 

 (Continued from January Issue.) 



The first method that will be considered is the neutral sodium 

 sulphite or U. S. P. method, using rosolic acid as indicator. 



It was impossible in our laboratory to get an oil which would 



come up to the proper requirement, after condensing three coppers 



of the oil. A sample was sent to an outside chemist and he reported 



2.8i% citral, while our test showed 2.77% citral. The greatest 



(3, difficulty is in determining the end point. The U. S. P. method was 



followed with the utmost accuracy, and it was impossible to 

 obtain higher results on three determinations, and a pure sample 

 of citral was assayed, using the above method, which showed 

 75. + %i citral, while the bisulphite method showed 97.%. 



