CHAPTER XI. 



COAL. 



In Chapters V to IX, inclusive, a systematic description 

 uf all the coal seams found in the two counties has been given, 

 '-ogether with type sections and correlations, and some of the 

 smaller beds, that are not of commercial importance, have 

 bscn fully described. In the present Chapter numerous actual 

 measured sections will be published for those coals that are 

 of minable thickness and purity, and estimates of their prob- 

 able tonnage with etchings showing their areal extent will be 

 given. At the end of the Chapter, there is a table of analyses 

 showing the chemical composition of all coals tested. 



STATISTICS OF COAL PRODUCTION. 



Commercial coal mining in Lewis and Gilmer has been 

 insignificant compared to many other counties of the State, 

 the records of production showing that they stand near the 

 bottom in point of output. Only two mining plants, one of 

 which is now dismantled, have been built in Lewis, and Gil- 

 mer has only four. Mining has been done in three seams ; 

 viz, Redstone, Pittsburgh and Elk Lick, of which the two 

 former are in the Monongahela Series and the latter in the 

 Conemaugh. All of these are drift mines of small capacity, 

 and comparatively simple equipment. 



