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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a limited quality to Newark, where it is used for the parlor grate., Prof.
Wormley gives the following analysis of this coal:
Specific gravity...........-................................... 1.298
Ash -...-.. --.. —.................-...-............-. 19.95
Volatile matter.....................-.................-.... -- 36.80
Fixed carbon................................................... 43.25
Total.................................................... 100.00
Sulphur.....-.......................................... -............... 1.31
Ash, dull white; coke, pulverulent.
At this point the cannel coal measures 3 ft. 9 in. Cannel coal is generally only a local modification of bituminous coal. The Flint Ridge cannel
appears to be no exception to the general rule. The following facts were
reported, viz: six hundred yards east of the present mine the cannel was
only 2 ft. 9 in. One-half a mile farther east, there are 2 ft. of cannel, and
a half mile still further, the coal is bitumious 2 ft. thick, while two and a
half miles beyond the last point, it is cannel again, 1i ft. thick. There were,
apparently, depressions or basins on which the cannel coal was formed.
These basins were filled with water as is proved by the abundance of the
marine shell, Lingula, and by the great number of Stigmariee found
through the coal. I obtained a specimen of Stigmaria made up of coal
itself and still retaining its cylindrical form. The Lingula and Stigmaria
are, however, most abundant in the lower part of the coal, showing submergence while the coal was forming. The maceration of the vegetable
matter into a pulp-like form would explain the cannel-like structure of the
coal.
The limestone at Flint Ridge is separated from the coal by 4 ft. of blue
clay shale, 4 in. of bituminous coal and 5 in. of bituminous slate. At the
mine, the limestone is from 12 to 14 ft. thick. It is dark blue, almost
black, thin bedded and contains some iron. The whole seam is highly
fossiliferous and a handsome collection was made.
The following is another section showing the same limestone with a
similar general grouping of strata. It was taken on the land of Joseph
Porter, 100 acre lot, No. 16, Hopewell township, Muskingum county. (See
Fig. 14.)
The limestone here partakes more of the nature of a highly calcareous
shale than towards the extremity of Flint Ridge, ten miles west, where
the last section was made. The lower part is more compact than the
upper. It is very rich in fossils, of the same species of mollusca seen in
the Flint Ridge limestone over the cannel coal. The seam of coal under
the limestone is 4 ft. 11 in. thick, including a parting 20 inches from the
bottom composed chiefly of pyrites. This parting varies from 2 to 8
inches. The upper seam of coal, in the above section, which was reported