1896.] Fresh Relics of Glacial Man. 783 
case, so in this, flint and jasper were abundant in the upper 
twelve inches, but argillite was the only chipped and angular 
material found in the lower two feet. A large diagram accom- 
panied Mr. Volk’s description in which the position of each 
one of these argillite fragments was found. The box was then 
opened for the first time, and the fragments presented for 
examination. Of the artificial character of many of them there 
was not the least question on the part of any one present. 
The importance of these discoveries as confirming the evi- 
dence of glacial man at Trenton heretofore presented can 
readily be perceived. It coincides with that presented by 
Professor Putnam and Dr. C. C. Abbott and Mr. Volk, going 
to show that there was a clearly marked succession in the 
human occupancy of the Delaware Valley indicated, first, by 
the sole use of argillite for implements, followed by a gradual 
and almost complete transition to the use of flint and jasper in 
later times. (See Putnam’s report to the Peabody Museum in 
the Proceedings of the American Antiquarian Society, October, 
1889, p. 11, and Observations upon the Use of Argillite by Pre- 
historic People in the Delaware Valley in Proceedings of the 
American Association for the Advancement of Science, by 
Ernest Volk, vol. xlii, p. 312). It also sweeps away at once 
the ingenious theories of Professor Chamberlin and others 
who would account for the occurrence of implements in the 
lower strata of sand and gravel through the agency of dry- 
weather cracks in the surface, the overturning of trees, the 
decay of tap roots, and the activity of burrowing animals; for 
none of these agencies would select the argillite, and leave the 
flint and jasper upon thesurface. Therefore it would seem that 
there can be little doubt that these argillite fragments were 
scattered by the agency of man at the time that the deposition 
of the Trenton gravels was still in progress. 
2. A second paper was by Prof. E. W. Claypole, detailing 
the particulars concerning the discovery of human relics from 
the drift at New London, Huron County, Ohio. These con- 
sisted of what would be called Neolithic axes, found by an 
intelligent workman in the process of well-digging in the blue 
till twenty feet below the surface. The circumstantial evidence 
