SUPPLEMENTAL REPOKT — HOCKINa VALLEY. 851 



opened seam of coal above. Here the distance down to the Nelsonville 

 seam is twenty feet eight inches. 



A few miles north-east of the Baird furnace, on the land of Jacob 

 Martzofif, there is a seam of coal which I took to be the Nelsonville seam. 

 Under the coal is Coal No. 5. About twenty-five feet above, is another 

 seam, not opened ; and twenty-seven feet higher, another. The latter I 

 supposed to be the middle, or Norris seam. If the determinations are 

 right, it is evident that there is a seam between the Norris seam (the 

 probable equivalent, in this region, of Coal No. 6a) and the Nelsonville 

 seam. Here ten feet of yellow clay shale were seen over the Nelsonville 

 seam. 



In the hills north of McCuneville, a seam of coal three feet thick is 

 seen, twenty feet above the Nelsonville seam, with similar yellow clay 

 shale between. More full investigations will, I think, reveal a well- 

 defined horizon of a coal seam about midway between the Nelsonville 

 (No. 6) and the Norris seam (No. 6a). The seam is not continuous by 

 any means, nor is the one next above; and when one is found without 

 the other, it is easy to confound them. 



The Norris Goal is named from a bank near Millertown, on Upper Sun- 

 day Creek, in Perry county. At this bank the coal is six feet thick, 

 with two partings, one one inch and the other three inches in thickness. 

 The coal is of fair quality, and well adapted to all ordinary use. The 

 seam was here determined by Mr. Gilbert to be forty-six feet above the 

 Nelsonville seam. It is to be traced in most of the hills in this region, 

 but sometimes it fails altogether. On the West Fork, above Bucking- 

 ham, on the land of Benjamin Sanders, Monroe township, we see the out- 

 crop of the same seam. The interval down to the Nelsonville seam — 

 here well seen — as measured by Mr. Ballentine, is forty-seven feet. The 

 coal on Mr. Sanders's land is thin and irregular. On the opposite side of 

 the valley it measures only two feet in thickness. On the Grigsby farm, 

 Section 9, Monroe township, the seam is four feet thick, and has been 

 mined for neighborhood use. Two samples of this coal were analyzed by 

 Professor Wormley, with the foUoVing results 4 



