THE IRON ORES. 401 
ANALYSES OF BLACKBAND ORES. 
1 2 3 4. 5 6 
SIUNGHS CVCIG | scpodacnoougoaacb paces dood 25.52 24.16 26.22 30.82 21.84 27.20 
Volatile matter ..................00- 13.30 20.06 21.10 11.70 26.28 18.80 
Roa GANA OCI DEKE) GoosadesocdceoG50G00500 45.86 33.60 34.69 39.31 36.64 38.51 
Tron sesquioxide ................e008 7.40 9.14 10.42 9.50 9.03 6.25 
PAULIN Ae seve voce sccccecee te veceseaeee se 0.50 5.75 OSLO eeseassecesce 1.00 1.00 
Manganese ecaaesedesecscaeesiesese' 2.10 1.85 1.70 1.30 0.30 2.35 
ime yCarWONAte re ....s..-nee-seseoes: 1.50 0.95 2.00 2.86 2.00 2.72 
Magnesia carbonate ... .........6. 3.26 4.20 1.84 2.50 1.96 2.49 
SUM EHS en reste g-ceenoss feces cease 0.17 0.30 0.11 0.31 0.13 0.21 
JANOEDI NGG BXENC lcd0q0600000000, bocbe 0.096 OOS QT | Reeecccesaleceseces cscs tr 0.63 
Lime phosphate........... BPs cl batsadeteus laseidemtoates 1.07 IPO) ay BScreeeeoeacall aaasanece 
99.706 | 100.042 | 99.85 99.09 99.18 | 100.16 
IMetallichinomecece.crssccesnccocstsss 27.32 22.62 24.06 25.63 24.00 22.96 
IBMOS PIOUS eesctit cess ses cen sisseens 0.043 0.018 0.27 0.30 tr. 0.28 
Iron in calcined ore .............+. 43.94 35.08 37.69 35.91 AL.27 35.72 
Professor A. A. Wright, of Oberlin College, who made the review 
of the economic geology of Holmes county for the present report was 
instructed to give special attention to these deposits. He did so, 
visiting all the accessible exposures. He sent in for analysis, samples 
of the 7 to 8 feet of ore on Christian Visher’s farm, German township, 
perhaps the best-known and most trusted of these deposits. The results 
are given below (No. 1). The average of the seam was taken. 
Afterwards I visited the Fisher bank in person, and selected two 
sets of samples, the first to show the average of the seam, and the 
second to show the composition of the most promising layers. These 
are given below in Nos. 2 and 3. In No. 4 the composition of the 
nodular ore from the same horizon is shown. The samples were taken 
from a heavy deposit in the Rowville cut of the Connotton Valley 
Railway. , 
The ferriferous character of the horizon has been fully established 
by 100 miles of outcrop in the eastern counties. It is the same stratum, 
viz., the Kittanning shales, it will be remembered, that bears the shell 
ore and the blue block ore of Tuscarawas county, and the kidney ore 
of Columbiana county. It is therefore no surprise to find iron accumu- 
lated in force at this level in Holmes county, but blackband has not. 
been heretofore reported from the Lower Kittanning seam. The Fisher 
bank, which is represented in the analyses given below, Nos. 1, 2 and 3, 
26001) (G: | 
