Geological Survey of the State of Ohio. 351 
lias, oolite, &c. The éwo latter are rocks which have been very 
partially, or more probably not deposited at all, over the coal meas- 
ures of Ohio.” Thus asserting, by implication at least, that the 
new red-sandstone existsin Ohio. In the 29th Vol. of this Jour- 
nal, if we recollect right, the writer suggests that we may have 
an equivalent of the sandstone of the Connecticut valley, in the 
valley of the Ohio. This, he founds on the coincidence of the 
two rocks in lithological character. We have seen no forma- 
tion in Ohio, which we have thought equivalent to the new red 
sandstone, and we have had an opportunity of studying both for- 
mations attentively. While the sandstone of the Connecticut val- 
ley agrees in many important particulars,* with that containing the 
zechstein of Germany, and the new red sandstone of England, it 
differs, so far as our observations extend, from any formation in 
Ohio, in its lithological characters, in its associated minerals and in 
its organic remains. The prevailing color} of the former is a deep 
red, sometimes variegated—that of the latter, white—but occasion- 
ally tinged. The same difference is observable in the respective 
shales of the two formations. Copper is a common mineral in the 
new red sandstone of the Connecticut valley. In Ohio, we have 
detected it but in a single instance, and that in a small quantity. 
In the former; bituminous marlite is common—in the latter, we 
find nothing which approaches it. In the former, satin spar often 
forms a thin lamina with the shale ;—in the latter, never. The 
same diversity exists with regard to the organic remains. ‘The 
rocks, which crop out on the eastern part of Ohio, we regard as 
the most modern, with the exception of the recent and tertiary 
formations. Here the dipis E. 8S. E., noris there an anticlinal axis 
between this and the western border of the State. Yet in these 
rocks occur the Producta and the Spirifer—fossils characteristic 
of an older formation than the new red sandstone. The new red 
sandstone is characterized by a scarcity of organic remains. In 
Ohio, they are profusely scattered throughout all the rocks. In 
io, no mammifers, and indeed, no vertebrata have been found. 
_ * Hiteheock’s Geol. Mass. p. 2 
¥ Color is a character of aie a TA among rocks, especially in the sand- 
4 Ihhyoltes ove said to have been fouud in the buhr of Ohio, but this needs 
atio hey are the only vertebrata as yet found below the new red sand- 
susie. There can be no doubt, from the pena fossils, that the buhr of Ohio, 
is a member of the coal series. 
