690 GEOLOGY OF 



varieties of ore had been firmly comminuted, thoroughly mixed and re- 

 cemented. It presents the appearance of a rich ore, and the stratum 

 measures eighteen inches in thickness. 



Ore No. 8 is sixty-eight feet above No. 6, and fifty feet below thQ Ames 

 limestone. It is called " Cave ore," being usually found directly under a 

 round rock. It is massive, about two and one-half feet thick, and in 

 some localities appears to be a rich ore. Its outcrops may be seen on sec- 

 tions eleven and twelve, Dover township, and on section nineteen, 

 Green's Run. 



Ore No. 9 is about ten feet above the last, and forty feet below the 

 Ames limestone. In all places now opened it is about two and one-half 

 feet thick, in small, solid, and closely packed nodules, and contains about 

 forty-two per cent, metallic iron. It has been opened on section nine- 

 teen, fractions one and thirty-six, Trimble township, and on sections 

 thirty and thirty-three, Dover township. It is an ore of great promise, 

 and appears to be present in large quantities. Substantially on this 

 horizon, thirty-five feet below the Ames limestone, in fraction eighteen, 

 section twenty-one, Trimble township, is a solid massive exposure of con- 

 glomerate ore composed of small fragments of ore, limestone, and sili- 

 cious matter, with a few quartz pebbles and fragments of fossilized wood, 

 the whole four feet thick, and evidently containing quite a large percent- 

 age of iron. This opening is on Laurel Branch of Mud Fork. 



Ore No. 10. — This is called the Fulton ore because first opened on the 

 farm of D. Pulton, section 29, Dover township. Its position is a few 

 feet below the Ames limestone, and indications of its presence in many 

 places may be observed. It has been opened only on the Fulton farm 

 and on fraction 36, Trimble township. On the Fulton farm the opening 

 has been carried some fifty feet into the hill, but no roof reached. The 

 maximum thickness at places observed by me is eighteen inches, but 

 the nodules and fragments of ore, some of considerable size, in the earth 

 above, indicate a thicker stratum when the rock cover is reached. This 

 is a remarkable Coal Measure ore, a yellow sesquioxide of iron, almost 

 pure, yielding a fraction over sixty per cent, of metallic iron, of sulphur 

 a mere trace, and of phosphoric acid 0.19 per cent. only. Prof. Weethee 

 reports finding at one point a solid block of the ore ten inches thick, and 

 one foot above the regular stratum, constituting no part of the latter, 

 which measured at that place twenty-five inches. This makes the whole 

 thickness of ore at that place thirty-five inches. He also says, " In one 

 corner of the opening it is nearly all ore for six feet deep. It has the 

 appearance of fragments of solid layers, and as they must have occupied 



