14 



THE NEW YORK JOURNAL OF PHARMACY 



of ammonia. The ammonium oleate 

 formed, decreases the tension of the cot- 

 ton seed oil toward the water and is, 

 therefore, adsorbed at the boundary hne 

 of the system, oil-water. . You prepare 

 vine.c^ar of sc|uills and boil it — the coagu- 

 lation of the albumin is a colloidal pro- 

 cess. We add alkalis to fluid extracts of 

 senega and taraxacum, to prevent pec- 

 tization. We know that alcohol or salts 

 in certain amounts, will crack emulsions ; 

 this is due to the dehydration of the 

 colloid and subsequent coagulation. We 

 distinguish between solution of ferric 

 sulphate and Monsel's solution, by addi- 

 tion of sulphuric acid — this is a colloid- 

 chemical test. Monsel's solution is a col- 

 loidal solution which is coagulated by 

 the electrolyte H0SO4. 



Cold cream is a colloid-system water- 

 fat. The water, the dispersed phase, is 

 dissolved in the fat. We know that only 

 such substances as are soluble in fat, are 

 absorbed by the skin, and the principal 

 action of cold cream depends upon its 

 water contents. 



Ferric hydroxide is used as arsenic- 

 antidote because it adsorbs arsenous acid. 



And so I could go on and on and recite 

 to you manipulation after manipulation, 

 test after test, used by pharmacists and 

 belonging strictly to the field of colloid- 

 chemistry. 



What a field of research lies here be- 

 fore us ! The scientific pharmacy of the 

 future will be in a position to determine 

 in advance what the action of certain 

 remedies will be or, how certain remedies 

 must be modified, to exert certain ac- 

 tions, or to make them more stable and 

 presentable. Professor Thoms, of the 

 University of Berlin, in a lecture deliv- 

 ered before the German Pharmaceutical 

 Association, pleaded for more active 



participation of the pharmacists in re- 

 searches of biologic standardization. 

 Without wishing to detract one iota from 

 his arguments, I want to call to your at- 

 tention that in colloid-chemistry there i:? 

 a field of research for the i)harmacist 

 which is not alone of interest and value, 

 but also full of promise of reward. 



The lecturer carried out the follow- 

 ing experiments to illustrate his remarks : 



Preparation of colloidal gold and of 

 colloidal silver by the electric spark un- 

 der water. 



Preparation of colloidal gold and silver 

 in different colors by chemical means. 



The Tyndall phenomenon in gold 

 "sols," in cigar smoke and other col- 

 loidal systems. 



Dififerent forms of dialysers — sausage 

 — thimble — filters — parchment — 

 collodion, etc. 



A numl)er of Liesegang's rings and Le 

 Due's figures. 



Preparation of coagulated colloidal- 

 Ferric Hydroxide. 



Preparation of gelatinous Barium Sul- 

 phate, gelatinous charcoal, etc. 



206 New Members Elected m the Year Ending 

 March 1st. 1914 



Organized 1897 



Incorporated 1902 



Jimcrican mcaico-PDarmaccutlcal Ccaguc 



The First Association of the Medical. 

 Dental and Pharmaceutical Professions in America. 



Pharmacists Admitted. Object: Co-operation. 



SAMUEL F. BROTHERS. Ph. G., M. D., 



Corresponding Secretary, 



96 New Jersey Avenue, BROOKLYN, N. Y. 



notice:. 



Drug stores (snaps) for sale in all states and 

 positions all states. Physicians, Veterinarians, 

 Dentists, Nurses, located and furnished. 

 F. V. KNIEST, R. P. Omaha, Nebr. 

 Established 1904. 



