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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said not to be seen until within two miles of Maxville. It is probable
that a careful search for it, at its proper geological horizon, would be rewarded in finding it at points nearer Union Furnace, and on the Hocking
river hills convenient to the canal and railroad. South and west of the
Hocking river, it has not been noticed; but from recollections of explorations made by me several years since, between Jackson and the Ohio
river, I am led to think that, in a few places, I saw small developments
of this limestone in its true geological horizon. The same horizon, continued across the Ohio river, would strike the Sub-carboniferous limestone of
Kentucky. I shall be able, next season, to settle this important point.*
Like the Kentucky limestone, the Maxville seam generally carries a
stratum of iron ore.
The following section, taken on the farm of David Hardy, near Maxville, shows the position of the Maxville limestone. (See Fig. 7.),4Z/' Soil'::.':'.Fine grainea S.Stone
Buff Limestone in tio'layers
v i' t 0Conpact blueish gray Limestone
5' Vot Seen
/-?'...._' — * —r Logan S.Stone Showing; - usual fossils
FIG. 7.
The Logan sandstone below shows the usual lithological texture and
the usual fossils-fucoids (Spirophyton, cauda-galli,) etc., Productus, etc.
A collection of fossils was made from the limestone. They are generally
indistinct, as if the shells had been acted on by some solvent before the
limestone became solidified around them. Bellerophon, Productus, Pleu* NOTE.-This has subsequently been verified, and the Maxville limestone will probably
prove to be the equivalent of the Chester limestone of the Illinois Reports.
6-G. S.