118 



C. U. C. p. ALUMNI JOURNAL 



July, 1918 



Darken's Solution. — J. B. T., New 

 York. — No reference to any such solu- 

 tion can be found in the many works of 

 reference consulted by us. We suspect 

 what was really intended was Dakin's 

 solution, the now famous hypochlorite 

 solution, used so successfully by Dr. Car- 

 rell in the treatment of wounds. A com- 

 prehensive account of this preparation is 

 found in the American Druggist for 

 March 1917, index page 97. At this 

 place, we will merely state that it is a 

 solution of sodium hypochlorite contain- 

 ing not less than 0.4 nor more than 0.5 

 per cent, of available chlorine and that it 

 is made according to Daufresne's im- 

 proved technic by mixing 184 grammes 

 of 25 per cent, chlorinated lime with 5 

 liters of water; by making a solution of 

 92 grammes of dried sodium carbonate 

 and 76 grammes of sodium bicarbonate 

 in 5 liters of water ; by mixing the latter 

 with the chlorinated lime mixture; and 

 after one-half hour syphoning off the 

 clear liquid. If the chlorinated lime 

 contains more or less than 25 per cent, 

 available chlorine different proportions 

 (given in the article referred to) of both 

 the lime and the sodium salts must be 

 used. 



(1915) 345, 15 (1917) 65 and 16 (1917) 



193- 



The importance of differentiating be- 

 tween egg albumin and pathological al- 

 bumin in urine is because soldiers feign- 

 ing illness have been known to introduce 

 egg albumin into urine samples before 

 they are submitted for analysis. 



Names of Manufacturers. — We gladly 

 furnish our querists with information 

 concerning the manufacturers of goods 

 handled by the drug trade, but for ob- 

 vious reasons, such answers are not pub- 

 lished in this department. 



Legal Queries. — During the month, 

 we have answered a number of queries 

 relating to pharmacy laws, local, state, 

 and national, emphasizing each time that 

 the information given was merely the 

 personal opinion of a layman. For this 

 reason we do not print such answers, 

 since in serious legal matters a lawyer 

 should be consulted. 



Maurel's Reagent. — K. R. N., New 

 York. — This reagent is made by mixing 

 together 25 mils of 33 per cent, aqueous 

 solution of sodium hydroxide, 5 mils of 

 3 per cent, aqueous solution of copper 

 sulphite and 70 mils of glacial acid. This 

 reagent has been recommended by Gau- 

 thier as a means of differentiating be- 

 tween egg albumin and the albumin of 

 pathological urine; coagulatmg the for- 

 mer and not the latter. The advantages 

 and weaknesses of this reaction are elab- 

 orately set forth by Hollande and his co- 

 workers in a series of articles found in 

 Journal de Pliarinacic et dc chiinic, 11 



The Composition of Proprietary 

 Preparations. — A number of queries to 

 the composition of proprietary remedies 

 have been answered by telephone during 

 the past month, by reporting analyses 

 published by chemists in various bureaus 

 devoted to such work. For various rea- 

 sons at this time we will not print the 

 answers to such queries, but will refer 

 our readers to the two publications of 

 the American Medical Association, The 

 Propaganda for Reform in Proprietary 

 Medicines and Nostrums and Quackery, 

 as well as to the Bulletins of the food 

 and drug departments of the States of 

 Connecticut, Ohio, Indiana and North 

 Dakota, all of which we have in the 

 library. 



