SUPPLEMENTAL REPORT ~ HOCKINa VALLEY. 869 



and obviously not very rich in metallic iroa. It doubtless contains 

 phosphorus enough to make the iron cold-short; but it is abundant and 

 near the farnace, and can be obtained very cheaplj'-. 



From eighteen to twenty feet below the ore is a byer of limestone 

 one foot six inches thick. This is somewhat nodular on the outcrop, 

 which makes it easily dug. This furnishes the flux at the farnace. At 

 the base of the hills is the Nelsonville seam of coal, the three lower 

 benches of which are mined, yielding a little more than six feet of coal. 

 Thus all the raw materials, which are almost within a stone's throw of the 

 furnace, are amazingly cheap, and although a very large amount of ore 

 and coal is used in making a ton of iron, the manufacture is said to be 

 profitable. The furnace is fifty feet high and sixteen feet wide in the 

 bosh. 



The Ogden Furnace, higher up the valley of Snow Pork, obtains its 

 native ore from the Bessemer seam. The ore is similar in appearance to 

 the ore at the Akron Furnace. The lower bench is reported to be from 

 ten inches to two feet in thickness, with an estimated average of 

 fifteen inches: Upon this rests a layer of the so-called "lime bowlders," 

 the mass ranging from one foot to one foot eight inches in thickness. I 

 have no analyses of the ore of the lowiir bsnoh, but the nodules abDve 

 are reported to yield from eight to twenty per cent, of iron. From fif- 

 teen to twenty feet below the ore is the usual limestone. The coal of the 

 Nelsonville seam lies at the base of the hills, and here-is overlain by eand- 

 rock, which usurps the placeof the usual overlying shales and of the upper 

 bench of the seam. This intrusion of the sand-rock appears to have 

 had an injurious efiect upon the quality of the coal. Bat the seam can 

 be found in an undisturbed condition not far away. 



The Ogden Furnace is fifty feet high, with a width of bosh of fifteen 

 feet, and is furnished with three Whitwell hot-blast ovens. On the land 

 of Messrs. Buckingham and Wright, east of Snow Fork, I saw loose 

 masses of ore supposed to be of the Bdssemer seam. 



On the Cawth'orn farm, on Monday Creek, near Bessemer, the Besse- 

 mer seam of ore shows a fine outcrop of nodules, in all from four to 

 five faet in thickness. There is no drift opened to reveal the thickness 

 of the lower bench of ore. Here the ore is, by Locke's level, eighty three 

 feet above the bottom of the Nelsonville seam of coal, and seventeen feet 

 above the limestone, which, at this place, is from three to four feet thick. 

 Some years since I obtained a sample of the outcrop ore, thoroughly 

 oxidized, which Prof. Wormley analyzed with the following result : 



