40 THE ALUMNI JOURNAL 



lias reported a poisoning-case in which bread was contaminated with 

 arsenic by the use of arsenical muriatic acid along with soda to make 

 the dough rise. 



But even for some purely technical uses, arsenic in sulphuric (or 

 muriatic) acid is not allowable, on the one hand, for the preparation 

 of certain colors, for tinning iron (sheet iron cleaned with arsenical 

 sulphuric acid is here and there covered with spots of reduced arsenic, 

 which will not take the tin coating — see Gosage in Hofman's report, 

 by juries, 1862, page 12) ; on the other hand, for the manufacture of 

 preparations which serve for food or medicine, and into which a 

 portion of the arsenic might pass over. To these belong tartaric, citric, 

 phosphoric acids, milk of sulphur, sulphide of antimony, etc. (page 

 636, second edition, London, 1891). 



Compliments of 



Franklin H. Kalbfleiscii Co., 



PHARMACOPOEIAL CORRECTIONS. 



The N. W. D. A. Committee on Standards and Tests of the U. S. 



Pharmacopoeia and National Formulary invites you to forward as 



promptly as possible information in regard to such Tests or Standards, 



including Properties and Solubilities, as in your opinion need correction. 



Criticism of Tests should be accompanied by the following data : 



(i) Fault found with test (specially state solubilities of article 



tested). 



(2) Manner in which test was applied. 



(3) Suggestions as to correction. 



Criticism of Standards should give reasons in detail why a change 

 would be desirable, stating when possible the comparative cost of article 

 of the present and proposed standards, bearing in mind that both 

 U. S. P. & N. F. aim to secure a high medical efficiency at a reasonable 

 cost. 



In view of the fact that the Committee on Revision of the U. S. P. 

 is at present investigating suggestions for correction ; it is desirable 

 that any criticisms you have to offer should be sent to your Committee 

 at the earliest possible date. 



If you have criticisms to offer, send them in now. 



For the Committee, 



THOS. F. MAIN, Chairman, 



44 Hudson St., New York City. 



