SUPPLEMENTAL KEPORT — HOCKING YALLET. 



879 



Better ores are reported from higher levels in the hills, but no analyses 

 of these ores have been furnished me. High in the hills bordering lower 

 Sunday Creek we find the limestones often associated with the Pittsburgh 

 (or Pomeroy) seam of coal. They may be depended upon to furnish a 

 large quantity of useful flux to furnaces located in that region. 



The furnaces already in operation in the district covered by this report 

 use, principally, the native ores. Some mix with such ores a larger or 

 smaller portion of Lake Superior ore. One or two furnaces also use a 

 portion of mill cinder. In former years much of the mill cinder of roll- 

 ing mills was thrown away. This was especially true of the cinder from 

 the heating furnaces, which was generally thought to be worthless. This 

 condemnation of the heating furnace cinder came from the old world, 

 and was widely accepted in Ohio. There appearing to me to be no good 

 reason for such rejection, I was led, during the progress of the Survey, to 

 obtain samples of the rejected cinder, together with samples of cinder 

 produced in the puddling furnaces. These were analyzed by Prof Worm- 

 ley. As these analyses have never been brought together and published 

 unitedly in one report I have thought best to give them here. In all 

 cases I was assisted in selecting the samples by the superintendents of 

 the several rolling mills, and every care was taken to secure representa- 

 tive samples. 



ANALTSE8 OF MlLL CiNDEBS FROM IrONTOX KOLLIKG MlLL. 



Silicic acid 



Iron protoxide ... 

 Metallic iron .•... 

 Manganese oxide 



Alnmina 



Lime . 



Magnesia 



Phosphoric acid ■. 

 Sulphur 



Totals. 



Metallic iron . 

 Phosphorus . 



Fuddling fur- 

 nace cinder. 



Heating fur- 

 nace cinder. 



lOO.flO 



52.05 

 ,2;} 



