4:3 



pleased some of the medical men, particularly Dr. Formby, by 

 whom it was introduced into practice in this town. After 

 coming to take charge of the company's laboratories, I found 

 that the method of preparation yielded a product which was 

 not of uniform strength, and sometimes of disagreeable flavour. 

 Accordingly, I altered the process, by separating and purify- 

 ing the chloroform, and dissolving it in pure spirit, by which 

 a product of uniform strength and sweet flavour was always 

 obtained. Thus prepared, it is much superior to specimens I 

 have seen of London manufacture. Those members of the 

 profession who are in the habit of using it, prefer it greatly to 

 sulphuric ether, as possessing all its remedial value, and being 

 very much more agreeable. 



" The vapour of the so-called chloric ether seems to have 

 been tried as a substitute for sulphuric ether in February or 

 March last, but without very satisfactory residts; which, indeed, 

 could scarcely be expected, unless the vapour of alcohol pos- 

 sessed the same properties, it being composed principally of 

 alcohol. When in Scotland, in October last, Dr. Simpson 

 introduced the subject to me, inquiring if I knew of anything 

 likely to answer. Chloric ether was mentioned during the 

 conversation, and, being well acquainted with its composition, 

 and with the volatility, agreeable flavour, and medicinal pro- 

 perties of chloroform, I recommended him to try it, promising 

 to prepare some after my return to Liverpool, and send it to 

 him. Other engagements, and various impediments, pre- 

 vented me from doing tin's so soon as I should have wished, 

 and in the meantime, Dr. Simpson having procured some in 

 Edinburgh, obtained the results which he communicated to 

 the Medico Chirurgical Society of Edinburgh on the 10th 

 November, and which he published in a pamphlet entitled — • 

 Nat ice of a New Anasthetic Agent as a Substitute for Sulphuric 

 Ether /,/ Srwrgery and Mvkovfery. 



"As an inhaled anaesthetic agent, he states that chloroform 

 possesses the following advantages over ether: — 



o 



