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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reports an annual production of stoneware of 1,800,000 gallons, valued at
five cents per gallon, or $90,000. There are other pottery establishments
in the district, but no statistics have been received in regard to them.
SALT IN THE SECOND GEOLOGICAL DISTRICT.
The principal salt-bearing rocks in my district are the upper Waverly.
In railroad cuts, on the Columbus and Hocking Valley and on the Marietta and Cincinnati Railroads, I find, in the dry weather of summer, a
saline efflorescence on the rocks. Following these efflorescent rocks in
their dip to the south-east, I find that, so far as the facts are yet gathereI, the salt wells are bored down to them, and from them obtain their
brine. Salt was formerly made near the mouth of Munn's run, on the
Ohio river, between Portsmouth and Sciotoville, from wells bored entirely in the Waverly rocks.
The wells of Messrs. Green and Gould, at Salina, Athens county, strike
the brine about 570 feet below the surface. It being 110 feet from the
surface to the Nelsonville seam of coal, the salt-bearing stratum is
reached at 460 feet below the coal. This coincides with the theoretical
position of the saliferous rocks of the upper Waverly, as indicated by
the efflorescence seen upon the rocks in the railroad cuts above Logan.
As we descend the Hocking river the Nelsonville coal dips, and the saliferous strata are'found at a correspondingly increased depth. There is
an abandoned salt well, where salt was formerly made, on Monday creek,
Salt Lick township, Perry county, but the depth of the well was not
ascertained.
At Pomeroy, on the Ohio river, the principal sources of brine are found
about 1,000 feet below the surface. Here the brine comes from the top
of the Waverly.
On the Muskingum river there are many salt wells. They increase in
depth with the south-eastern dip of the rocks.
On Duck creek, in Noble county, salt wells are found affording abundant brine, and some salt is made, to supply the local demand. Some of
the abandoned oil wells yield a constant outflow of brine.
East of Cambridge, in Guernsey county, salt is made from brine obtained about 800 feet below the surface. These wells are in immediate
proximity to a valuable seam of coal from five to six feet thick. There
is an ample supply of coal for salt-making on Duck creek.
The wells bored for oil within the last few years have disclosed valuable brines in a large number of the counties in my district. Nor is the
brine limited to one group of rocks in the geological series,"but we find
brine at different geological horizons, from the upper coal measures
down to the great Devonian Black Slate. The brines of the district will
hereafter be made a subject of special investigation, both in their geolog