C. U. C. p. ALUMNI JOURNAL 201 



sulphur. Evidently a small amount of convenient card v^hich can be posted in 



the potassium chlorate worked into the a conspicuous place in the prescription 



crevice with the sulphur and caused it to laboratory. This list is arranged in four 



explode when given a sudden jar. An columns and divided into chemicals, 



examination of the other pestles of the drugs and preparations. Each pharma- 



same type showed them to contain as copoeial substance which has had its 



much as lo to 20 grammes of sulphur. standard changed is placed under one of 



This explosion might have been more ^^^'^ ^^'^^ headings and in the three 



disastrous had not the mortar been used ^djoming columns the following in- 



o*. +u- 4.:^^ ( • J- 4.U • formation is given: 



at this time for grinding the pumice ^ 



stone, as, in a few days it would have The 8th Revision Standard, 



been used again to pulverize more po- The 9th Revision Standard, 



tassium chlorate, and with the excess Remarks on the Changes. 



chlorate the explosion would have been ^, . . ^ ., , • ■, . 



. , ^ thus, for instance, if one desired to 



more violent. , ,,,,,, 1 



know whether there had been any change 



It certainly is not generally known in the standard for Extract of Nux 



that the handles of these pestles are Vomica it would only be necessary to 



sealed in with sulphur, for if it were look under the heading of preparations, 



they would never be permitted in the the sub-heading extracts, and then look 



laboratory. for Nux Vomica in the regular alpha- 



The pestle was of German make and ^^^ical order. The information there 

 whether or not they still employ sulphur §^1^^" ^^ ^^^^ according to the U. S. P. 

 for this purpose is difficult to say. If ^^^ Revision Extract of Nux Vomica 

 any companies in this country are using contained 5% strychnme. According to 

 sulphur for this purpose they should ^^^ U. S. P. 9th Revision the same ex- 

 substitute in its place some inert cement. ^^^^^^ contains from 15.2 to 16.8% al- 

 Laboratories should bar the use of this ^^^"'"^^ ^'^"^ ^"^ Vomica. The re- 

 type of pestle until the sulphur has been "^^''^s «" the change are "standard now 

 replaced by some safe material. ^^^^^^ to total alkaloids and limits are 



given." 



Of course, this list is for quick ref- 



THE MULFORD COMPANY IS- erence only and full information must 



SUES DIGEST OF U S P ^^ sought in the Pharmacopoeia itself. 



PTTAMrTTQ Howevcr, it is hoped that pharmacists 



generally will find such a ready refer- 

 In order to show the busy pharmacist ence of important changes both time 

 at a glance the important changes which saving and convenient. On the back of 

 have been made in the 9th Revision of this card are printed the pharmacopoeia! 

 the U. S. Pharmacopoeia and to have this additions, deletions, and a list of changes 

 information on hand for ready reference, of official Latin and English titles. Any 

 the H. K. Mulford Company of Phila- one desiring this card can secure the 

 delphia has prepared a list of the im- same on application to the Philadelphia 

 portant pharmaceutical changes on a Office of the H. K. Mulford Company. 



