SUPPLEMENTAL REPORT — HOCKING VALLEY. 847 



profile places it above the surface on Johnson's Run, where it certainly 

 ought not to be. 



In a marginal note on the profile section we read as follows : " Max- 

 well's bank, one-half a mile west of line of section, Great Vein coal five 

 feet ten inches thick, including seven inches cannel at bottom.'' This 

 note is so placed on the profile as to imply that the Maxwell bank is 

 within the range of the supposed uplift or anticlinal. 



By the term "Great Vein" is doubtless meant the Nelsonville seam. 

 I have often visited the so-called Maxville bank, with the cannel coal or 

 cannel shale at the bottom. Two feet below the coal is a lim.estone cov- 

 ered with iron ore. This seam of coal 1 have traced over wide areas, and 

 feel entirely confident that it is the Bayley's Run seam. The ore andlime- 

 stone below it are probably the equivalent of the Bessemer ore. The coal 

 some forty-five feet lower (by barometer) is the middle or Norris seam, 

 and the coal seam in the shaft about forty-two feet lower is the Nelson- 

 ville seam or the " Great Vein," i. e., what is left of its greatness, for the 

 seam is very thin. If the Nelsonville seam had been gradually rising 

 from the south on Snow Fork, to the elevation of the Maxwell bank, it 

 is impossible that Mr. Black and others interested, should not have some- 

 where met with it in the hills. Expensive researches below the surface 

 would thus have been saved. Further south in the same range of hills 

 I find the equivalent of the Maxwell coal fo^^r feet eight inches thick, 

 and ninety feet (by barometer) above the Nelsonville seam, which there 

 shows a total thickness from roof to floor of nine feet. 



Returning from these digressions we find, in following the Nelsonville 

 seam down Sunday Creek, that in Trimble township, Athens county, it 

 becomes thick again and of much value. In the Geological Report, Vol. 

 I, I have published in the report on Athens county, the more important 

 facts respecting the coal in Trimble and Dover townships. Besides this 

 I have contributed to two private Reports on the same field. Since the 

 last Report was printed, a shaft has been sunk to the coal. This is near 

 the center of fraction 36, Trimble township. At a depth of ninety-four 

 feet from the surface, the Nelsonville seam was reached and found to be 

 twelve feet thick. The reported structure of the seam is as follows : 



FT. IN. 



Shales. 



Coal, bone coal 1 



Splint coal 2 



Cannel coal — 1 



Coal, dry-burniug and excellent 3 



Parting i 



Coal, somewhat bitaminous - 5 



Total 12 i 



