5320 GEOLOGY OF OHIO. 
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Lair WOMO WSLS e sce eatae as ata ce ea teem nulls on gig Ria Gin earl ON LEON re STG ELL RERUN Mt 10 O 
8. Sandstone passing down into shale ...............scseee reece. PAR AE Aan 30 0 
OV Ore siderite; amaulinmiOmIte renee cece ke eee ewer ECA te en 0 7 
LOM Nodular lim ES 60 mes re sae Meee ok eras a as Sone ee ee ater HME ION CN SOLERO 6 0 
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Tes Slnaliy: Sam GStome cesses soaacicoekt decease scm etee erecta tee reee aap see sec ean eae 10 0 
Level of railroad track. 
In this section the strata in the slide could not be measured, and the 
thickness was estimated. No trace of the Cambridge seam of coal was 
sen. A section was made in the village from the bed of Wills Creek, 
at the site of the old mill, up to a seam of coal in Mr. Isaac Morton’s 
field, on the hill-side above, as follows: 
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DiC Qala Vian OM LOM ate wencaedencteecleean nea eee ec cereal are apenas itis on, HO YB © 
3. Not all seen, but the lower part a very heavy sandrock, with vast 
concretionary masses of “‘blue core”’ rock......... .ccoceces cooececes cones 39) 0 
4. Level of the railroad. . 
5. Interval to bed of creek, lower part shaly sandstone..............0000 +» 27 «(0 
6. Coal, once mined by stripping in low water in Wills Creek (reported) 2:9 
(Map XII., No. 5.) 
The upper coal in this section is believed to be the equivalent of the 
Cambridge coal, or Scott’s coal. It is generally covered with shale. The 
same seam is found under the floor of the shop of Louis Schreier, on Main 
street. It has an elevation of thirty-seven feet above the railroad track 
at the station. , 
A level from this coal strikes a bench on Tunnel Hill a little above the 
tunnel. <A trace of coal was found on this bench. Every where in the 
immediate vicinity of the town of Cambridge the Cambridge seam is 
very thin, and this fact has created the chief difficulty in identification. 
Two or three miles south of Cambridge the seam becomes thick enough 
for mining, and presents in that region a fine development. In this 
neighborhood the following section was taken at the coal bank of Andrew 
Nicholson : 
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9. Clayishale laminated geen use uaa iuacnualccouseseoe cc etaapeate diate taae teyeae eae L ERG 
Bo0 i Coals. Lac os iavee Sela Raine ole de) Sus aataae Ultaele Seles Meet eco Sane sk Uae a aera EIR ACE MEISE 3 10 
Ai (Clary Pave. css lce saves ccuane lec usdeneontenneensa cece coseace aeltnee tates omeepulaane 0 14 
BIOs oe asian etelavssedecesee coneealecela Nereeeee tena ee ee sercecat icine ker a ae RON aaa a i @ 
Get MU MASLCLAYV Ne yee dsccGsccesedecectscs covauelasacenculeesicaccdulse ales vemecieetces aletunecte weteries 3 0 
