36-J jiecount of' a recent melainhubj Occurrence 



met with at I5yketHiU (seethe Map of Northnmberland), but is 

 not found in the vale of Team which divides the former, nor of 

 Tyue whic'h separates the latter places. At Eyket St. Anthon's 

 Colliery (see Forster's Section), and in the Dean near Bill 

 Quay, its thickness is 12 fathoms; and its place 58 fathoms 

 above the High Main Coal ; for it is worthy of remark, that the 

 strata in this coal-field thicken on approaching^- the point of ex- 

 treme depth situated near .larrow. The stone t|Uarried and sunk 

 through at Byket Hill and Bvket St. A.nthon's is composed of 

 nmch coarser gruins than on Gateshead Fell, and by the Gulliery 

 sinkers is called Brown post. 



Respecting tlie nnsscle shells — these organic remains occur in 

 most places where ironstone is found in the shales ; not only in 

 the Newcastle coal formation, but also in the metalliferous 

 limestone district upon which it rests, where encrinal limestone, 

 isandstone, and shale alternate ; but the Icpalities are too nur 

 inerous to mention. 



Very respectfully, 



Your oi^edient humble servant, 

 Newcn^rle-upop-Tyne, NaT. Joh>' WiKCR. 



May 8, 1816. 



IvXVI. Account of a recent melauchohj Occurrence at Heaton 

 CoUierij. By A CoRREypoNDENT. 



To Mi: Tllhch, 



TNe'vcasrle-iiji'i'i-Tvno. .^^ay lA , 1815. 

 HOUGH some of tije London prints have publi'^hed 

 accounts of the dreadhil accident which happened at Heaton 

 ("olliery, on Wednesday the 3(1 of .this month ; vet as the>:e 

 paragraphs appear to be only short extracts from our provincial/ 

 newspapers, the editors of which have omitted a description of 

 the local situation of the mine and other circumstances well 

 known, and of course uninteresling to their readers in this part 

 of the kingdom ; — I trust the particulars now transmitted you 

 will be deemed worthy a place in the Philosophical Magazine ; 

 and under the impicssion that your .lournal is perused by many 

 gentlemen connected with mining pursuits, I shall offer no 

 apology lor detailing some njinute occurrences, or occasionally 

 making use of technical terms when appHcable. — Heaton Col- 

 liery lies a mile and a half cast of this town, and was won 

 aljout twenty-five years ago ; the workings are carried on in the 

 High Main Coal, from the dip where the engine-pits are sunk 

 to the depth of about eighty fathoms, towards the rise, v. here there 

 may be twenty-fi\e fatlioms covering on t'lc scam : but here the 



prcocnt 



