Notices respecting New Books. 145 



strain, and conse(|uently the curvature, must also vary as tlie 

 length, and the ultimate depression must be as the cube of the 

 length. This correction is the more necessary, because, froni 

 the manner in which he has introduced his proposition, after a 

 definition professedly copied from a classical work on the subject, 

 it appears as if the jiroposition itself were also borrowed from 

 that work, and supported by its authority. 



XXIX. Notices respecting New Books. 



The Pharmacopoeia oj" the Royal College of Physician <> nf Lon- 

 don, 1809: translated into English, with Notes, &>c. Third 

 Edition. By Ricfiard Powell, AJ.D. Fellow <,f the Col- 

 lege, Physician to St. Bartholomew's and the Magdalen 

 Hospitals, &c. 8vo. London 1815. Longman and Co. 



v_/UR readers have been from time to time apprised that the 

 learned and indefatigable translator of the London Pharmacopoeia 

 was busily employed in collecting materials for an improved and 

 enlarged edition of that valuable Vv*ork. In a modest and well- 

 written preface. Dr. Pouell thus describes the various objects 

 which it was his study to attain : — 



" Since the pubhcation of the last edition of the London Phar- 

 macopoeia, various objections have been published to its general 

 principles as well as to its processes. These, whatever be the 

 language in which they are expressed, whatever the motives by 

 which thev are in many instances dictated, deserved at least a 

 calm consideration of their subject matter, and even the adoption 

 of such parts thereof as appeared to be necessary and useful. 

 Under this impression a committee of the college went through 

 the Pharmacopoeia, and have made those alterations therein 

 whicli have bv them been judged to be requisite, and vvhich, 

 having received the sanction of tlie college, are now published. 



" It will be seen that the alterations adopted refer, hrst to some 

 important processes, to which reasonable objections have cer- 

 tainly been urged, on the score either of manipulation or of pro- 

 duct, as, for instance, in the preparation of Autimonium tar- 

 tarizatum, which, though it answered repeatedly accordmg to the 

 former process, upon a small scale, l)efore the conmiittee, has 

 certainly failed upon a large one, and under other circumstances: 

 secondly, to some changes in the names of substances, as in 

 giving up that principle (which was before considered to be sufli- 

 ciently distinctive) by which suh and super were only employed 

 where both the salts were used pharmaceutically for the purpose 

 of distinguishing between them, without regarding t!ic actual re- 



Vol. 'IG. No.208. y?//ir'«M8l5. K ' Ir.tiuu 



