220 Mr. BuDDLE on the Great Fault in the Forest of Dean Coal-field. 



In examining the upper seams at Park End Colliery, in the line of the Horse, 

 there appears to have been some deteriorating cause, and it is a question whether 

 the flowing of the river might not extend over some of those seams by virtue of 

 their lower position as regards level. 



There is a bare possibility that the subsidence of the Cannop Brook Valley, if it 

 was prior to the deposition of the upper seams, might occasion such a want of 

 conformity in the action of the river. At all events the deterioration of the upper 

 seam at Park End being exactly in the line or direction of the Horse, is a circum- 

 stance which merits notice, and the investigation, if pursued, may probably throw 

 much light on the history of the formation of this basin. 



The question is, did the upper seams ever extend over the site of the Horse, or 

 were they only deposited in the depression where they now are ? Until it is ascer- 

 tained whether the Horse follows the High Delf seam of coal only, it will be dif- 

 ficult to form an opinion on this question, but the mining operations of Mr. Mushet 

 and others will shortly bring this to light. 



