of North America with those of Europe. 181 
and corniferous limestones, all these having fossils in common, 
and only in particular localities distinguishable into these subdi- 
visions. On the other hand, the Caudagalli grit commences with 
the termination of the Oriskany sandstone, contains no fossils ex- 
cept the peculiar “ enigmatical” one giving it the name, is coéx- 
tensive in New York with the Oriskany sandstone, and does not 
appear beyond its western termination, while the other rocks are 
continued.* 
n proceeding, our author proposes to unite the Marcellus shale, 
Hamilton group, Tully limestone and Genesee slate in one di- 
vision, and make the Portage and Chemung the second of this 
period. In this we quite agree, admitting that such an arrange- 
ment is most conformable to the Paleozoic indications. 
e are happy to observe in the concluding remarks of M. de 
Verneuil, that he has attached due importance to the difference in 
the character of the sediment in the eastern extension of the for- 
mations, as indicating the proximity of shores; and also the oc- 
currence of fucoids and ripple marks, indicating always a shallow 
sea. We give below the passage: 
“If we embrace in a single view, the Paleozoic formation of 
the State of New York, we may observe some general features 
which we will merely indicate here, before passing to the study 
of the same formation in the States of the west. One important 
fact which strikes the observer, is that the beds being horizontal 
and conformable, the organized creatures present under the single 
influence of time, such successive modifications that the greater 
part of the groups or subdivisions, are characterized by species 
proper to the different beds of which they are composed, and by 
others less numerous, which connect them with the superior and 
inferior groups. The disposition of the mineral materials also 
gives place to important considerations. The predominance of 
the sandstones and the schists in the eastern part of the state of 
New York, seems to indicate that on this side existed the conti- 
nent, whose streams and shores furnished to the sediments the 
elements of which they are composed.t This view has not es- 
* We are extremely sorry to see that M. de Ver 
tenipora at Caledonia, in Livingston county, o 
Lock port. This is a good locality of the corniferous fimestone, an 
confident that a Catenipora could nev 
and the peculiar Tentaculites of 
ry has too many such collectors, 
y of aspecimen, and when trusted at all, 
produce the most serious confusion. Nothing is of so much importance relative 
: the true locality 
and position of specimens, and we cannot too severely reprehend the practice of 
giving or o| selling specimens as from one locality, which are from a different and 
distant ‘i 
es! 
analogous to those 
