Dr. Yeats on an Affection of the Brain. 1 1 



the doctrine. From the ease which this plan very speedily 

 produced, Mr. J. very readily submitted to a perseverance in 

 it, and for one whole week he never once lay in a horizontal 

 position, and the application of the lotion to the head was never 

 omitted during the whole of that time. He occasionally walked 

 about the room for relief. At the end of the week he was so 

 much better that the plan was gradually omitted ; and the best 

 symptom of amendment was, that he was able to sleep hori- 

 zontally, awaking without pain. I am well aware of the ex- 

 cellent effects of the application of cold in that excited state of 

 the brain, which in children and others so often ends in effusion 

 of fluid there, but I do not recollect to have met with so long 

 continued and obstinate a pain within the head, connected, too, 

 with such great derangement in the digestive organs, in which 

 the erect position, with cold applications, was so long^persevered 

 in, and with such decided and permanent benefit. The seton 

 was not withdrawn till the 6th of July, a period of two months 

 from its first insertion. The only medicines taken were, a solution 

 of thesupertartrate of potash as a diuretic (to obviate the accumu- 

 lation of fluid in the brain, for in almost all cases of severe af- 

 fections of this organ, more or less of effusion of fluid takes 

 place,) and occasional purgatives when necessary. This gen- 

 tleman remained free from his complaint up to last year, since 

 which time I have not heard of him. 



Art. III. An Account of the Rock Specimens collected 

 by Captain Parry, during the Northern Voyage 

 of Discovery, performed in the Years 1819 and 1820. 

 By Charles Konig, Esq., F.R.S., 8fC. 



\To the Editor of the Quarterly Journal of Science and the Arts.l 



British Museum. 

 My dear Sir, Feb. I8th, 1823. 



I have great pleasure in transmitting to you the short account 

 1 have been desired to write of the ruck specimens, which were 



