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Hlumni 3^ournal 



A JOURNAL OF PHARMACEUTICAL PROGRESS. 

 Published monthly by the Alumni Association of the College of Pharmacy 



of the City of New York. 

 Pharmaceutical Department of Columbia University. 



PUBLISHED AT 43 FULTOM ST., NEW YORK CITY. 



CHAS. A. LOTZ, Ph.G., Editor H. J. GOECKEL, Phar D., Associate Editor 



Vol. XIV. . AUGUST, 1907. No 8. liBRARV 



~ NEW ynwK 



SUBSCRIPTION PRICE, INCLUDING POSTAGE: BOTa -. 



Fer Annum, $1.00. Per Copy, 10 Cents. <i-'''^OeN. 



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. 



NOTES ON RUBBER. 



Frederick A. Leslie. Phar. D. 



Professor Maximilian Toch delivered an interesting and instruc- 

 tive lecture on Rubber at the College of Pharmacy on April loth, last. 



In beginning his lecture, he stated that his subject was one of 

 great "Elasticity" and as the time allowed for the lecture was limited, 

 he would have to "cut it short" as possible. 



Rubber has become almost indispensable in the arts and in the 

 line of surgical appliances, although it is never used for internal medi- 

 cation, excepting as a mechanical agent as a stomach tube etc. 



In the drug store we find hot water bags, fountain syringes, tub- 

 ing, gloves, hard rubber syringes, nipples, stoppers, plasters, catheters, 

 bougies, trusses, sheeting, rubber dam, bandages, etc., all of which are 

 made from the simple plant juice. — rubber, the official name and defini- 

 tion of which is "Elastica". The prepared milk-juice of several spices 

 of Hevea Aublet (Fam. Eitphorbraccac), known in commerce as "Para 

 Rubber". 



The milk- juice containing about 50% of water is heated on long 

 sticks over a smoky fire, the sticks being kept in a continual round and 

 round movement until the rubber has become thick and plastic. The 



