1883. | Proceedings of Scientific Societies. 1319 
and the Palisades, N. J., by Mr. Nelson H. Darton; The Trenton 
(N. J.) gravels and their contained implements, as bearing on the 
antiquity of man, by Professor Daniel S. Martin. 
Oct. 22.—Observations made during the past summer were 
expected from several members, including Notes on the Copper- 
mining region of Lake Superior, by Dr. N. L. Britton, and re- 
ports by others upon points of interest at the Minneapolis. meet- 
ing of the American Association for the Advancement of Sci- 
ence. 
Oct. 29.—The following paper was announced: The relative 
soil-exhaustion by the sugar-cane crop, by Dr. A. R. Ledoux; 
Mr. George F. Kunz exhibited some interesting minerals. 
Boston Socrety or Naturat History, Oct 17.—Dr. C. S. 
Minot discussed the histology of the skin of insects, and Mr. W. 
O. Crosby spoke of the “ Purgatory ” in Sutton, Mass. 
ACADEMY oF Narurat Sciences, Philadelphia, May 24.—In 
answer to Professor Heilprin, Professor Lesley said that the 
geological world was by no means unanimous with respect to 
glaciation. No one could say that the movement of ice was from 
One center, or that that center was in the far north. The Alps 
had no center of glaciation. There was no foundation in fact 
for Dana’s theory of the relations between continents and oceans. 
Professor Heilprin replied that the Alps themselves were a cen- 
ter of glaciation. 
June 1.—Dr. Leidy spoke of a human bone found in a ravine 
at Natchez along with bones of Mastodon and Megalonyx. As 
there are Indian graves near, it was quite possible that the human 
bone, which was lowest, may have been washed from the soil at 
the top of the cliff, while the mammals came from a lower posi- 
tion. Yet if the bone had not been human, no one would have 
thought of such a solution, and the Natchez loam was not older 
than the alluvium of the Somme, in which human implements 
have been found with bones of the mammoth.. If proof of con- 
temporaneity were forthcoming, it would indicate the existence 
of man in North America a thousand centuries ago. Professor 
Cope detailed the results of two days’ fishing in the Batsto river, 
N The fauna of the region is Carolinian. Twelve species of 
quires seven to fourteen days, 
The Rev. Dr. McCook spoke of the | 
ys. 
hentzit in captivity. In the winter it was inacti í 
torpid. It dog, land made the earth scratched up by its palps 
