SUPPLEMENTAL BE POET— -HANGING EOCK DI8TEICT. 909 



esteemed as highly as the Limestone Ore at several points, its uncer- 

 tainty always excepted It has been worked by itself to a small extent 

 in Gallia Furnace, making an iron of the best quality. 



It is seldom worked where it has a thickness of less than eighteen 

 inches. It is estimated to yield thirty-eight per cent, of iron in the fur- 

 naces where it has been tried. This yield, it will be remembered, ia from 

 outcrop ore. 



14. An entirely similar association of buff limestone and ore is met, 

 for the third time, at ten to fifteen feet elevation above the last 

 named bed, or at about seventy-five to eighty-five feet above Coal No. VL 



The similarity of these three depogits (Nos. 12, IS, and 14) has led 

 some observers to hastily class them as one, and to explain their dififer- 

 ences of level by " slips " of the strata. No such explanations, however, 

 are tenable, for two at least of these three horizons stretch without a 

 break through many hundreds of square miles, and the section at Nel- 

 sonville, in the Hocking Valley, is repeated at Ironton, on the Ohio 

 River, with surprising agreement. 



The ore now to be considered is better known than either of the others 

 which it resembles so closely. It has had, heretofore, a very unfortunate 

 designation, viz : the Beesemer Ore, the naoae being derived from the site 

 of the Akron Furnace Company on Monday Creek, in the Hocking Val- 

 ley. It can well be substituted by the name of the enterprising head of 

 the Akron Company, and the ore will be here known as the Buchtel Ore. 

 It is quite probable that some of the various horizons known in Perry 

 county as the Sour Apple Ore, will find a place here. This last namo is 

 supposed to belong to the horizon of the Straitsville Ore by the best 

 right, but its uncertainty makes it safer to discard it. 



Except the Great Coal Seam, no other stratum of the Hocking Valley 

 has awakened so much interest and excitement as the Buchtel Ore. Its 

 outcrops in the vicinity of Akron Furnace show a wall from three to six 

 feet in thickness, and it is evident that the ore may be quite lean and 

 yet make a valuable contribution to the iron manufacture of the State. 

 The ore contains from twenty to thirty per cent, of iron under cover, the 

 average of many analyses being about twenty-four per cent. The per- 

 centage of silica varies, being sometimes, though rarely, as low as eight 

 per cent., but the usual figures varying between twelve and twenty per 

 cent. The average is not less than fifteen. It is to be remembered, how- 

 ever, that in the lime of which the ore carries a notable percentage, a 

 part of the flux is contained, and the percentage of silica can accord- 

 ingly be looked on as the double one of ore and flux. 



The results obtained from Akron Furnace have been watched with 



