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.

88 100 ft. Soft beds at the base of the coal measures in Carter county. This member varies in thickness in different localities. 75 ft. Seventy-five to 100 feet Millstone grit. This member, as well as the Sub-carboniferous limestone, thins out toward the Ohio river, near the mouth of Tygert's creek, where this member forms a mass fourteen feet thick, and the Sub-carboniferous limestone is only twelve feet thick. 100 ft. Calcareous muddy shale, with a few thin beds of limestone. 350 ft. Sub-carboniferous limestone, thinning rapidly toward the Ohio river. 20 ft. Twenty to seventy-five feet grindstone grit (upper part of Knob formation?). 725 ft. Knobstone (Waverly sandstone of Ohio). 120 ft. Black (Devonian) slate, 100 to 150 feet. 700 ft. Buff porous limestone of Lewis, Fleming and Bath counties. 75 ft. Limestone producing red earth by disintegration. 100 ft. Slaty mudstone, thin bedded. 150 ft. Lower Silurian or Blue Limestone, forming the base of the Owingsville hill.. In this section we find the Millstone grit, or conglomerate, in its true place above the sub-carboniferous limestone, separated only by calcareous shales and limestones, which may perhaps be properly included with the sub-carboniferous limestone group. But under the great limestone there are 20 to 75 feet of grindstone grit, which Mr. Lyon is in doubt about, whether or not to call it a part of the upper portion of the Knob or Waverly formation. The question at once arises whether the grindstone grit, which is probably only in local developments, as I have never chanced to see it in my examination of the Knobstone formation of Kentucky, may not correspond with theso-called conglomerate in my district, which is found in patches, sometimes conglomerate in texture and sometimes a grindstone grit, and located statigraphically at different levels from the Maxville limestone horizon down for 300 feet into the Waverly series? Should the conglomerate and coarse sandstones, which I find so scattered in their'vertical range through several hundred feet below the horizon of the Maxville limestone, prove to be no true and normal conglomerate of the coal measures whatever, but simply coarse materials whose location is due to the accidents of currents, in other words, mere Waverly conglomerate, we shall be relieved from the embarrassment of finding the Waverly fauna and flora above the conglomerate. The following is a list of fossils found in the Waverly at Newark, whiph have been identified by Prof. A. Winchell, of Michigan. A small part of these were sent by myself-but the larger part by Mr. Herzer: Producta semireticulata, Flem.; Chonetes pulchella, Win.; Hemipronites umbraculurn, Sch.; H. inequalis? Hall; Spirifera extenuata, Hall; Spirifera Waverlyensis l. sp., 5Win.; Spiriferina solidirostris White; Syringothyris typa, Win.; Conocardium pulchellum, M. & W.;

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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.
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Geological Survey of Ohio.
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Page 96
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Columbus,: Columbus printing company, state printers,
1870.
Subject terms
Geology -- Ohio.

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"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." In the digital collection Making of America Books. https://name.umdl.umich.edu/agm6058.0001.001. University of Michigan Library Digital Collections. Accessed April 28, 2025.
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