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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measures in one place thirteen inches in thickness. A few kidneys from
three to four inches thick were dug out of this layer, which were rich in
iron. One of them was analyzed by Prof. Wormley, and found to contain 43.06 per cent. of metallic iron. If uncontaminated by phosphorus
or sulphur-for which, as yet, no examinations have been made-this
ore, if found in adequate quantity, will serve an admirable purpose for a
mixture with the Lake Superior ores.
Forty feet above this ore, or about fourteen feet above the upper or
"Stallsmith" seam of coal, is a deposit, apparently in very large nodules,
of an earthy blue carbonate of iron or siderite. On the Latta farm, near
Millerstown (Perry county), the thickest nodule measured two feet in
thickness. Here there was an evident slip, as the ore was imbedded in
earth and not in stratified clays. At this place two or three smaller nodules of siderite, of a different lithological texture, were seen, but their
true place could not be ascertained. One was five inches thick. On the
Rogers farm, in the same neighborhood, the same earthy blue carbonate
of iron was seen, grouped in three layers of nodules, measuring respectively thirteen inches, fourteen inches, and six inches, making in all thirty-three inches. To determine whether these nodules will prove sufficiently contiguous to constitute regular seams, will require additional
excavation.
As this was by far the largest development of ore seen above the horizon of the great seam of coal, samples for analysis were taken from both
the Latta and Rogers farms. The sample from the Latta farm yielded,
according to Prof. Wormley's analysis, 26.12 per cent. of metallic iron,
and that front the Rogers farm 23.78 per cent.
A limestone sometimes found in large, scattered nodules, in the yellow
clays from fifteen to twenty feet above the great coal seam, on the west
branch of Sunday creek, contains a small amount of iron. A sample
obtained by Col. James Taylor, of New Lexington, and my assistant,
Mr. Gilbert, from near the bridge on the road from Millerstown to the
west branch, was analyzed for iron by Prof. Wormley, and found to contain 2.52 per cent. of iron.
For the purpose of general comparison, t give from Bauerman's Metallurgy of Iron the average richness in iron of the ores used in the famous
Cleveland Iron District in England. This average, for four samples
from different localities, is 35.79 per cent. of metallic iron, while the average of six samples from our coal-field is 36.57 per cent. In this number
I include one sample of ore taken from above the great seam of coal on
Sunday creek. In freedom from the deleterious element, phosphoric
acid, the Ohio ores are far superior. The Cleveland ores give an average
of 1.905 per cent. of phosphoric acid, while of the five samples, thoroughly analyzed, from our coal-field, one yielded 0.18 per cent., two gave