Letter from Dr. Thornton on the Cow-Vox, 49 



.sons were inoculated from her by Dr. Heysham, of which 

 event the following letter is a document : 



*' DEAR SIR, Carlisle, Nov. I5, I80O. 



" I return you my best thanks for your very obliging let- 

 ter, and am certain that the inhabitants of this city are 

 under great obligations to you for your kind attention in 

 sending a healthy subject Under the action of the cow-pock. 

 Nine children have been already inoculated from her under 

 my inspection, and several more will follow their example 

 lo-morrow. As soon as the infection takes place, I shall 

 advertise a general inoculation at our dispensary ; by which 

 means I doubt not but the practice will become universal in. 

 this part of the country. My little girl was inoculated with 

 your second lancet the moment it arrived, but without ef- 

 fect, and a third time yesterday with one received per 

 favour of Sir .Tames Graham. I shall attend to your P. S. 

 and will recommend to all the surgeons to make use of very 

 clean lancets, and matter taken early in the disease*. 

 *' I am, dear sir, &c. 



" John Heysham." 



The pleasing result of the first trials at Carlisle will be 

 Been from the following letter : 



** DEAR SIR, Carlisle, Dec. 6, iSoo. 



'^ Mr. Alderman Richardson left; your favour yesterday 

 evening, when I was out of town j and as I understand he 

 means to return to Lowther, either this day or early to-mor- 

 row morning, I embrace this opportunity of informing you 

 that all who have been inoculated here where infection took 

 place, since you sent the little girl, have done extremely 

 well. Not one of them was affected with any considerable 

 fever, or any kind of sickness to excite the smallest un- 

 easiness. 



" With respect to my own child we have been rather un- 

 lucky, as shehasnot received the infection th^nigh inoculated 

 tlirce times with the dry matter vou were so kind as to send. 

 And since we received the recent matter we have been under 

 the disagreeable necessity of changing her nurse no Ipss than 

 twice, and at present, on account of an indisposition com- 

 mon to children, must po.^tpone the inoculation. 



*' I have the honour to be, &c. 



" John Hevsham." 



* This P. S. alludes to tlie power of rust in clestroyirg the specific 

 virtue of the cow-pocT: matter, anil producing, inconsequence, the spu- 

 rious instead of the tnif pu-stule ; also to the cow-pock pustule somtuhms 

 losing its specific virtue- a'tjr the ninth or tenth day. 



Vol. 20. No. 77. Oct. 1804. D . Upon 



