ANALYSIS OF OHIO COALS. 81 



No. 2. — Tallmadge Coal. 



Softer than the preceding variety, breaking into cnbical 

 i'ragments. Color, brilliant black, with some scales of silex 

 and spangles of sulphuret of iron in the joints. Specific 

 gravity, 1.264. 



Chemical Composition — Carbon, - - 53.727 



Bitumen, - - 43.713 

 Ashes, - - 2.560 



Total, - - - 100.000 



Economical Value. — Adapted to the generation of steam, 

 for household use and the production of gas. Extensively 

 used, when coked, for the reduction and manufacture of 

 metals. 



Specimens taken from Upson's, Harris's and Newberry's 

 mines, in Tallmadge, Summit county. 



Geological position same as last. 



Thickness, 4 to 5 feet. 



No. 3. — CMppeway Coal. 



Hardly to be distinguished in external character from the 

 last, but more uniform in quality. Specific gravety, 1.265. 



Chemical Composition — Carbon, - - 56.050 



Bitumen, - - 40.890 

 Ashes, - - 3.060 



Total, - - - 100.000 



Economical value, geological position and thickness same 

 as last. 

 From Clinton, Stark county. 



No. 4. — Bolivar Coal. 



A bright, handsome variety, of a brilliant black, vitreous 

 lustre, and cubical, sometimes conchoidal fracture. Hard- 

 ness medium. Resembles best specimens Chippeway and 



K 



