Remains of Fossil Mammalia, §c 



147 



inch in length, and of a proportionate thickness. These are the only 

 instances, which have come to my knowledge, where fossils of this 

 class have been found in secondary rocks. In a sandstone cave, in 

 Wood County, Virginia, bones are found in the rock on the bottom, 

 but they are the bones of deer, which stalagmites have enveloped j 

 a solution of the carbonate of lime, dripping through the sides of the 

 cave has slowly concreted over them. Extensive salt petre caves 

 are not common in the coal measures ; there are therefore no recep- 

 tacles of this kind, for fossil bones. Granite bowlders, so abundant 

 all over the tertiary region, are very seldom seen in the secondary 

 portions of " the valley." 



A tabular mew of the specif c gravity ^ and combustible qualities of 

 the Bituminous Coalsy from different places in the coal measures 

 of the valley of the Ohio. 



Places. 



a 



C( 



It 



Zanesrltle, upper bed, last deposil 

 iCarr's run, Pomeroj^'s bed, Ohio, 

 Bed of Muskingum river, at Coal ) 



run. ) 



Kenawha salineSj upper bed, 



middle bed, 

 lower bed, 

 Clarksburgh, Va., Monongaheia 



valley, 

 Pittsburgh, Pa., outlet of Monon- 

 gaheia vallev, 

 Brownsville, Pa., Monongaheia 



valley, 

 Pipe Creek, twelve miles below 



Wheeling, Va., 



Wheeling, Va., same bed, 



Clearfork, Little Muskingum 



creek, Ohio. 



Cambridge Slaty Cannel Coal, 



West Fork of Duck creek, Ohio, 



Hockhocking river, near Nel- 



sonville, above and near the 

 salines, 



Near to Jacksonville, Illinois, 



«1j 



60. 

 60. 



50. 



65. 



64. 

 60. 



55. 



60. 



60. 



60. 

 60. 

 55. 



50. 

 50. 



55. 



C - >;: C-i4 



0) C °^ (u id 

 o s ^ 



o o 



40. 

 40. 



50. 



35. 

 36. 

 40. 



45. 

 40. 



40. 



40. 

 40. 

 45. 



50. 

 50. 



45. 



53. 1.22 

 50. 1.27 



53. 



60. 

 55, 

 54. 



53. 

 55. 



53 



1.31 



1.25 under the silicious slate 

 1.29 jUnder sandstone rock. 

 1.25 under shale. 



1.22 



1.28 

 1.30 



53. 1.23 

 53. 1 1.23 



53. 1.38 



under limestone rock- 



50. 



1.41 



53. 1.61 



40. 



55. I 45. I 50. 



1.26 

 1.20 



amidst limestone. 



100 parts of best English coal, 



" of Newcastle 

 of Wigan 

 of Slatv cannel 





tt 



tt 



give 



(C 



tt 



Br 





Per cent of 



bitumen 



and earth. 



CM 



V fa 

 u o 



63. 





58. 



40. 



58. 



61.73 



36. 





47.62 



32. 





o > 



EC 





127 

 1.26 



1.42 



