232 



BULLETIN 42, UNITED STATE8 NATIONAL MUSEUM. 



The coking coals of the Kentucky and Tennessee region are repre- 

 sented by four specimens of coal and one of coke. 

 (1) Peach Orchard Mine, Lawrence County, Kentucky. (56981.) Composition: 



Specific rjravity 



Water 



Volatile matter 

 Fixed carbou . . 

 Ash 



Sulphur 



Coal. 



1. 295 1. 325 

 Per cent. Per cent. 



3.20 

 37.74 

 55.06 



4.00 



3.30 

 22.70 

 64.46 



9 54 



100. 00 

 0.720 



100. 00 

 1.132 



1.287 

 Per cent. 



3.90 

 36.80 

 56.30 



3.00 



Coke. 



100. 00 

 0.756 



Per cent. 



5.10 



0.90 



90.06 



3.94 



100. 00 



(2) Captain Crogan's Mine, Pnlaski County, Kentucky. (56295.) Composition; 



(3) Glen Mary, Scott County, Tennessee. (56367.) Composition: 



Coal. 



Water 



Volatile matter 



1' ixed carbon 



Ash , 



Sulphur 



Phosphorus 



Analyst, Dewey. 



(4) Rockwood, Roane County, Tennessee. (54532.) Composition 



100. 00 

 0.88 

 0.039 



Coal. 



Water 



Volatile matter , 



Fixed carbon 



Ash 



Sulphur 



Analyst, Dewey 



Per cent. 



1.75 



26.62 



60.11 



11.52 



100. 00 

 1.49 



