WASHINGTON COUNTY. 475 



Ft. In. 



16. Shale 18 



17. Limestone 6 



18. Bed shale '. 14 



19. Fine-grained laminated sandstone 5 



20. Eed shale and scattered limestone 33 



21. Buff and white limestone > 3 



£2. Shale 5 



23. Sandstone 19 



24. Shale 3 



25. Coal 1 



26. Clay and slate 1 6 



27. Coal 3 3 



28. Clay 5 



29. Limestone (reported). 



(See Map XL, No. 8.) 



We see by this section that the quantity of limestone' over the coal is 

 much less than at Beverly or on the Dana farm. On the lower part of 

 Big Run a coarse sandstone takes the place of the limestone altogether. 

 Such changes are not uncommon, and show how difficult it is to identify 

 the coal seams by associated sedimentary rocks. While in this case, 

 about Beverly the waters brought in calcareous mud, now constituting 

 limestone, at another point they brought in sand, now forming sandstone. 

 At George W. Lyne's bank, below Coal Run village, the coal seam shows 

 the same structure as at Ewart and Mills's bank. Mr. Lyne reports that 

 " the thickness of the seam varies from three and a half to four feet three 

 inches in thickness." South of the river no banks have been opened. 

 The coal doubtless extends south, but it must be mined by shaft and the 

 mines drained by pumping. The upper foot of coal, the part above the 

 clay parting, is not generally taken out. There is no reason why abun- 

 dant brine should not be obtained by boring, and the poorer coals be 

 used for making salt. Mr. Lyne reports the quantity of coal mined at 

 the Coal Run banks at from 400,000 to 500,000 bushels a year, and this 

 quantity could be very largely increased if the demand required it. The 

 coal, when mined with proper care, is of good quality for the generation 

 of steam and for household use. It has a caking tendency, and needs 

 stoking to allow it proper draft. On Big Run, the Coal Run seam of coal 

 is found along the whole length of the stream. Six miles above the 

 mouth, in Noble county, Mr. Jacob Cassel has obtained the coal on his 

 land by stripping, and reports it to be from five to six feet thick. From 

 Cassel's the dip of the coal seam is about equal to the fall of the stream. ^ 

 About two miles above the mouth the limestones above the coal mostly ' 

 disappear, and a heavy, coarse sandrock comes in. A section on the land 



