934 Geological Reports of the State of New York. 
long been known that the oolite of Saratoga County could not . 
belong to the oolitic series of Europe 
Fourth: Eleven species of organic remains are given to iden- 
tify the lower cretaceous series of New Jersey, Delaware, and 
the Atlantic states further south, with that of Europe. p. 45. Mr. 
Conrad discovered the middle division of this series at Wilming- 
ton, N. C. The upper division is stated to exist in South Caro- 
lina and Georgia, and to abound “in the southern counties of 
Alabama and in Florida.” p. 45. 
Fifth: The “lower terijary” was first noticed by Mr. Conrad, 
and shown to be the same with the “Eocene formation.” ‘In 
Georgia, and more rarely, in Alabama, a portion of the formation 
assumes the character of burr stone,” containing beautiful shells 
finely ‘“‘silicified,’ which we admired years ago, and were com- 
to separate the rock from the Paris burr-stone, which is des- 
titute of shells. On the Potomac, at Fort Washington, is the 
same lower tertiary, and at Claiborne, Alabama, Mr. C. found in 
it “about two hundred species of shells and corallines, many of 
which are identical with the Eocene species of Europe.” p. 46. 
Sixth: The rocks of the older Silurian system, terminating 
upwards with the Pentamerus oblongus limestone in this report, 
seem to be bounded on the south by the Mohawk River and the 
Erie Canal nearly, and which are covered by the mouutain ridge 
at Lockport and Niagara River, &c., reappear “at Bedford 
Springs, and in the vicinity of Cincinnati, Ohio,” according to 
the discovered fossils. p. 32. Indeed, the organic remains at the 
west seem likely to identify more of the rocks. What an nplift- 
ing of the strata in Ohio, must have taken place, or a mighty 
wearing away of the incumbent series which extend westward 
under the waters of Lake Erie, or a cutting off of the Silurian 
of this State from that of Ohio by the ridge through which the 
Niagara River passes. 
In conclusion, reference might be made to the unnamed fucoids 
of the Niagara deidacotie: which are abundant below the lower 
falls of Genessee, and the numerous shells and fucoids above this 
sandstone, which remain to be identified or to increase the num- 
ber of the species, Standing as we do on these remains, the 
coming and final report is 1 ear to reveal a world of mysteries 
and settle a host. ape “Hiffieulties:: 
sibin Tare as i eee 
WA si 
