58 GEOLOGY. 
the paper by Desor, than whom no one can speak with gren 
authority, in which he has made a comparison * between the 
„cial marine beds of the North and the marine coast deposit 
the Southern states, parallelizing the deposits in a masterly man 
ner. His remarks entirely confirm the views given above. ©) 
difficulty Desor had in parallelizing the Laurentian beds of 
North with those of the South containing the remains of land am 
mals, was the apparent absence of the remains of land animalsi 
the clays of the North, but since then teeth of the bison har 
been found at Gardiner, Maine, in the upper part of the clay 
It may also result from farther investigation that the phosphate 
beds were laid down at a later period than we have supposed 
the time when the great mammals found in the cave at Phe 
ville by Mr. Wheatley flourished, perhaps during the earlier o 
tion of the river terrace period when the mammoth and mastode 
lived both in the northern and southern states. ” 
Thus, the parallelism between the Quaternary beds North 
South would seem to be even more exact than Desor twenty ye 
ago could make it with his data. The climate gradually gv 
warmer from Labrador to Florida; the Gulf Stream did n 
parently change its bed during the Quaternary period; the 
lations of level of the. coast of South Carolina were slight 
involved but a few feet, where in Canada and Labrador the 
and fall involved several hundreds; and the denudation eff 
in the North by land ice, was caused in the South by oceanie Cu 
rents, waves and atmospheric agencies. There are- apparently 
facts to show that while the glaciers lined the coast of New 
land, the waters of South Carolina were not as warm, if 
warmer, than at the present day, from the effects of the 4 
Stream. — Bulletin Essex Institute. ae 
Derr Sea Expiorations. — The expedition by the 
Survey, under the charge of Professor Agassiz and Count 
tales, to explore the sea at great depths in the Southern 
lantic and along the Pacific coast, revives the interest in the Te 
markable discoveries made by the late English deep-sea dre 
explorations in the Mediterranean Sea. It seems, as “Nat 
remarks, that Humboldt, as long ago as 1812, maintained 
EEE E på EA g PET 
and the deposits of the valley of ~ e Mississippi. By E. Desor. American J 
Science and Arts, 1852. Vol. 14, 
