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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STALLSMITH'S UPPER COAL.
Specific gravity............................................ 1.254
Combined water......................................... 3.80
Ash.................................................................. 4.14
Volatile matter....................................................... 40.21
Fixed carbon......................................................... 51.85
Total.................................................. 100.00
Sulphur............................................................. 2.62
Permanent gas per lb. coal in cubic feet........................... 4.69
Color of ash.-...-.. -.............Gray.
Character of coke.............................. Compact.
This coal is rich in gas. It makes also a very compact and durable
coke. The amount of sulphur is considerable, and may interfere with
the usefulness of the coal for gas and iron making. Should, on coking,
a considerable portion of the sulphur be eliminated, the coke might, from
its hardness, serve an important purpose for a mixture with the coal of
the great seam for iron making.
On the land of James Fowler, Pleasant township, Perry county, there
are two seams of coal, as given on the Map of grouped sections, in Sec.
No. 28. The lower seam was traced by Hon. Alvah Jones and my assistant, Mr. Ballantine, from YRoseville, where it is the upper Lexington seam
(the equivalent of the great or Nelsonville seam). The upper, 283 feet
above the lower, measures 4 ft. 10 in. The top 10 inches are not worked
in the mine. No partings were seen. Mr. P. Yakey reported having
mined the lower seam and found it 4A feet thick, with a parting. On the
land of Ebenezer Pyle, in the same township, there is a seam, 4 ft. 1 in.
thick, which is believed to be the same as the upper one on Jas. Fowler's
land. Mr. Pyle reports a seam below (probably the upper Lexington
seam) and another above.
Doubtless there will be found at other points seams of coal lying above
the great Nelsonville seam, and more careful investigations will hereafter
be made as we carry our sections upward, above the horizon of the great
seam. It is however already evident that, in Hocking and Perry counties,
the conditions of deposition were such that we can expect little uniformity in the strata for the 60 or 80 feet above the great Nelsonville coal.
IRON ORES.
It will be almost impossible to make a section of the lower strata of
the Productive Coal Measures, at an5 place, in the field included in this
report, without disclosing more or less iron ore. There are a few distinct
and well-defined horizons on which the ore is almost always seen. This
is rendered evident by an examination of the map of grouped sections.