Part I. Report of progress in 1869, by J. S. Newberry, chief geologist. Part II. Report of progress in the second district, by E. B. Andrews, assist. geologist. Part III. Report on geology of Montgomery County, by Edward Orton, assist. geologist.

85
This brings the two limestones into proper position in the geological
series. I copy a section made at Zanesville, by Col. J. W. Foster, given
in the report of the old Geological Survey of Ohio. (See Fig. 10.)
40 znSd'Vone Qu.r.eiod
Shates Blu$/JPI/ w Coal
W )~-~ —t Bituminous Sha[ia
40 J Sandstone,.__
Co(at
Shale &f Fis.sil SStoae
25' ]
4 f/ F z.D Blue Liresioee lutnanm Hill
6,<. a Bituminous Shale With Thin Layers Of Coal
Fissile S.Stone
3 J Bituminous Shale. With Leaves Of Coal
/,9 -BBa r Coat
6 i Blue Shale.Te2:/ Slaty S.Stone
7Shales
6,<?! W yCompact S.Stone't3 ~ Shales: With N2oaules Of Ircz; eJ/':.: -.- Sanastonre MIicaceoius',6., i Shale With, L ayers Of Iron Or0
13 B- BlacH Shals
-w ci 4 ll CCannel Coal
s s.::,S-hala
~~8 j:^ ^Blue. Limestonp
6 f GodICoa.
FiIG. 10.