SUPPLEMENTAL REPORT — HANGING ROCK DISTRICT. 925 



Furnace), the interval is forty-two feet. In Section twenty-five, Clinton 

 township (Eagle Furnace), it is forty five feet. In Section sixteen, Clin- 

 ton township (Hamden Furnace), it is forty-six feet. In Section two, 

 Milton township (Lincoln Furnace), it is forty-two feet. In Section 

 twelve, Bloomfield township, (Keystone Furnace), it is fifty-five feet. In 

 Section four, Madison township (Madison Furnace), it is fifty-one feet. 

 In Section thirty, same township (Oak Hill), it is sixty-three feet, and 

 in Soction six, (Washington Furnace), it is sixty-six feet. At the last 

 four stations the coil is known as the Sheridan seam. 



A geological connection cannot be made stronger than this. There is 

 room for an argument as to the identity of the upper New Lexington Coal 

 and the Nelsonville seam, though this identity is highly probable, but 

 there is no room for argument as to the equivalence of the Sheridan and 

 Nelsonville soam. It is demonstrated. 



The same line of facts, of course, holds for the limestone ore. It is cer- 

 tain that (he limestone ore of Jackson county is the limestone ore of 

 Vinton county, though a difference of interval of twenty-five feet occurs 

 between it and the next best known horizon, viz., Coal No. VI within 

 this art a, but not a foot of difference between these two horizons occurs to 

 the northward, where the limestone ore is known by different names as 

 Baiid ore and red ore. The outcrop of the ore is continous as far as the 

 nature of the ground allows, and the measures are indentical. The struc- 

 ture and character of the ore also is the same through all the dif- 

 ferent exposures. 



The Gray Limestone gradually loses its volume as it is followed north- 

 ward from Vinton county. It is found in full force in Section eighteen, 

 Elk township, Vintoii county, but northward from that point there is no 

 ground high tiicugh to hold it until the north side of Swan township is 

 reached. In the neighborhood of Mt. Pleasant it is struck at many 

 points. The next point to the northward with elevation great enough 

 to catch the limcstoiie is Ilesboro, in Washington township, Hocking 

 county. The limestone paves the ror.ds of Ilesboro. It is here at least 

 two feet thick, with characteristic fossils and appearance, and is overlain 

 with a fine showing of the limestone ore. Thousands of tons of ore have 

 been taken out here and carried to the nearest furnaces. The limestone 

 underlies much of the east side of Washington and the west side of Starr 

 townships, but is not more than a foot thick in this district. Going 

 northward from Ilesboro, no other land is high enough to hold it until 

 Schultz'sPIill, two miles south of Logan, Section twenty-five. Falls town- 

 ship, is reached. Here the ore at least is found with about the usual 

 interval (one hundred and seven feet) between it and the Zoar Limestone, 

 the outcrops of which are well shown around the hill. In illustration 



