C. U. C. F. ALUMNI JOURNAL 



11 



Mill), situated (or. better, isolated) in 

 the pine wiKjds near I''uerstenber<T^ on the 

 Oder, ilevotinri^ himself to chemical and 

 pharmaceutical studies and to literary 

 work. He then moved to Frankfurt on 

 the Oder, and in 1896 to Xeu-Ruppin. 

 where he died on January 24th. 1807. 

 at the ripe age of eighty-one years. 

 Small was the number which attended 

 his funeral, unpretentious is the stone on 

 his grave, but high and everlasting is the 

 monument which Hager has erected for 

 himself in his literary works and his 

 many books on pharmacy. 



Among the numerous books from the 

 brain and pen of Hager. I call especial 

 attention to his masterwork, the "Hand- 

 buch der Pharmazeutischen Praxis." 

 Since its first edition in 1880, this work, 

 which now comprises three stately vol- 

 umes, has had a larger circulation, per- 

 haps, than any similar pharmaceutical 

 book. It has also been translated into 

 Russian, and the German edition may 

 be found in professional pharmacies 

 throughout the world. This classic 

 work is not only a univer.sal pharmaco- 

 poeia, but also a lie plus ultra reference 

 work in all branches of pharmacy. 



Numerous honors have been bestowed 

 upon Hager. The philosophical faculty 

 of the University of Jena conferred 

 upon him the degree of Ph. D.. and the 

 medical faculty of the same university 

 granted him the honorary degree of M. 

 D. He was elected an honorary mem- 

 ber of many pharmaceutical societies 

 and colleges, including the following in 

 the United States : The American Phar- 

 maceutical Association, the X'ew Yorker 

 Deutscher Apotheker \'erein. the Phila- 



delphia College of I'liarmacy. the Chi- 

 cago College of Pharmacy, and the 

 Massachusetts College of Pharmacy. 



CHOLEVAL. 



Choleval is a colloidal silver prepara- 

 tion in which the sodium .salt of the 

 bilary acids is employed as the protec- 

 tive colloidal agent. It is said to be the 

 most stable of all colloidal silver prepara- 

 tions. It is marketed in the form of lus- 

 trous, dark-brown, almost black, and 

 odorless lamellae or plates. It is very 

 soluble in water, the solution possessing 

 a faintly alkaline reaction. It contains 

 10% of silver. It is practically insoluble 

 in alcohol. Identity reactions : Ifo.igm. 

 of choleval is dissolved in 5 cc. of 

 water, and if to 2 cc. of this solution, 

 lU cc. of concentrated sulphuric acid 

 are added, a reddish-brown solution re- 

 sults, which shows a green fluorescence 

 in reflected light. The addition of a few 

 drops of cane-sugar solution, changes the 

 color to deep-red. The addition of 

 hydrochloric acid to a solution of chole- 

 val results in the formation of a brown 

 precipitate. Choleval. heated in a test- 

 tube, emits an odor resembling that of 

 burning hair. Choleval is said to be a 

 verv valuable agent in the treatment of 

 acute, subacute and chronic gonorrhoea. 

 The presence of bile acid salts is said to 

 enhance its value in this disease to a 

 great extent. Comparative bacteriolog- 

 ical exj^eriments have shown that chole- 

 val completely sterilized gonorrhoeal pus 

 in the period of 10 minutes, while silver 

 albumose required 60 minutes to accom- 

 plish the same result. Both preparations 

 were used in 1:100 solution. 



