_ 20 room would seem to be left for any oth 
1876) Proceedings of Societies. 633 
Dicrocerus trilateralis and Dicrocerus tehuanus. In answer to Dr. Mc- 
Quillen, Professor Cope stated that he had at one time supposed 
that the burrs on certain of the antlers of the fossil deer indicated the 
seat of fractures, but he had not in all cases been able to find evidence 
supporting this view. The fact was also pointed out that these antlers 
had a superficial coating or epidermis which would be sufficient to hold 
the fractured pieces in place. 
Acapemy or Sciences, St. Louis.— May 15th. Judge Holmes re- 
marked as follows upon man and the elephant in Nebraska. In Dr. 
Hayden’s Annual Report of the United States Geological Survey for the 
year 1874, recently published, appears the report of Dr. Samuel Aughey 
on the Loess deposits of Nebraska. It is stated that the Loess covers 
three fourths of the surface of that State, ranging in thickness from forty 
to one hundred and fifty feet, and extending westward from the Mis- 
souri River to a limit beyond Kearney and the Republican Fork. 
The more important fact which he desired to notice was that Dr. 
Aughey, after some years of careful searching, had succeeded in finding 
imbedded in this deposit two distinctly-shaped and well-worked arrow- 
heads, which are figured in his report (page 255). One of them, a small 
arrow-head, was found at a depth of fifteen feet, at a place three miles 
east of Sioux City; the other, nearly four times larger, might very 
well have been a spear-head, and it was found at a place two and a half 
miles southeast of Omaha, and at a depth of twenty feet, and ‘‘ thirteen 
inches above the point where it was found, and within three inches of 
ing on a line with it, in undisturbed Loess, there was a lumbar verte- 
bra of an elephant (Elephus Americanus).” The material is not named 
hor are measurements given. Flint chips are mentioned as found “in 
the bluffs” in Dakota County, but as not certainly of human origin. 
The discovery is important as going to show the contemporaneity of 
man and the elephant on this continent during the period of the Loess. 
They must have inhabited together the shores of the great inland seas 
or expansions of the rivers, in which the Loess formation was depos- 
ited. It furnished the first distinct and incontrovertible proof of this 
fact that he was aware of. Bones of mastodon, ele 
Illinois Geological Sur- 
found together with 
ered by Loess near 
seemed to admit 
of some doubt on the question of their cotemporaneousness. But here 
the arrow-head and the vertebra must have bee 
