SUPPLEMENTAL REPORT—HOCKING VALLEY. 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 wasthrown 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. 
ANALYSES OF MILL CINDERS FROM IRONTON ROLLING MILL. 
Puddling fur- Heating fur- 
nace cinder. nace cinder. 
Silliicicyacidieese eae eee NT Sia oa) Bea tie i ea 30.00 29.€0 
MOMs POCORN Cle ere tee ee eae avon kc cic ees : 65.04 64.67 
IMetalicairomeacetieun cee Serer wertecmicloci een Oo aes eee SL oy, 2.30 
Namimames evox (Om mme itary serene aeante ye reise cieeyeic 2 1.60 Trace. 
PAST TUTALATT en eco anne Sear att Ly OM LSS a 1..0 2 40 
IBC pears aay anue MEU Cae eC Lk IR MUL Tal a 0.20 0.44 
aR YEFIVECTIEN GSE eis c ieee eG Crete eRe a ae en een ps Trace. Trace. 
ANC S WOM CAC yee se soldat Aart hte A lala ces 1.24 0.54 
RAUL Uo] eNews peat oS NT AS VRE PC Trace. Trace. 
HILO Leal SRS A ee earn ey tale SUNN ea ie ea Ph 99.28 100.00 
Me talhictino my 20 ave epe meee coe mee Sue ey. a 50.59 52.65 
POS DMONUS Merson eevee ctee ea Mal a Rela od call sli, 6 120 
