1876.] Proceedings of Societies. 191 
human habitations. Specimens of dried brick which had been used to 
plaster over these rude habitations were also found. Mr. A. J. Conant 
also exhibited some skulls, and implements of bone and stone, found by 
him in caves in Pulaski County, Mo., on the Gasconade River. one 
ACADEMY OF Sciences, New York. — January 24th. The president, 
Dr. J. S. Newberry, made a communication on Fossil Fishes and Foot- 
Prints from the Trias of New Jersey, in which he announced his re- 
discovery of an old and important locality, which had been for many 
years forgotten or lost. Boonton, New Jersey, lies at the junction of the 
Trias with the gneiss range of the Highlands ; and close to the village 
occur two adjacent beds of shale, in the Triassic sandstone. These layers 
are literally crowded with fishes, for the most part in a very perfect 
condition, showing no traces of slow decay, but rather of sudden destruc- 
tion and burial, Many fine specimens were procured, but only one 
species had been definitely recognized, Catopterus gracilis. 
He also exhibited very fine and large tracks from the Triassic sand- 
stones at Pompton, a few miles from the fish locality. They have the 
same characters as the three-toed reptilian foot-prints (the so-called 
‘ bird-tracks ”) of the Connecticut Valley. ‘The evidence is ample that 
this great tribe of bird-like reptiles had a very considerable development 
in our American Mesozoic, reaching on well into the Cretaceous in the 
forms of Hadrosaurus and Leelaps. : 
Prof. D. S. Martin presented an account of the Occurrence of Silurian 
Fossils in the Drift of Long Island. The fossils are characteristic Bra- 
chiopods of the Delthyris shaly limestone (especially Strophodonta Becki 
and S. Headleyana) from a large bowlder in the heavy drift of Long Isl- 
and, at Willett’s Point. A like circumstance has lately been noted in the 
Proceedings of the Philadelphia Academy, — the finding of Oneida and 
Medina bowlders at West Philadelphia. The questions arising are the 
same in the two cases, namely, as to whether the transporting agent was 
glacier-ice or bergs. If the former, the distance over which the ice- 
sheet actually moved (in the present case nearly one hundred miles) is 
quite beyond our usual estimate, at least in this region, and would also 
require that the glacier should have overridden the range of the Blue 
Ridge Highlands entirely. On the other hand, if icebergs were the 
agents, they must needs have passed through the narrow gaps in that 
range now occupied by the Hudson, in this instance, and by the Dela- 
ware, Lehigh, or Schuylkill, in the other. The finding of some oysters 
(apparently O. borealis) with the Long Island bowlder would indicate 
clearly that floating ice was the agency of transportation. 
r. Henry Newton, of the United States Black Hills Expedition, 
exhibited a large series of rocks and of Cretaceous and Jurassic fossils, 
collected by the party last summer, and described their occurrence some- 
what in detail. The rocks included Potsdam sandstone, Huronian slates, 
and granites of two very distinct types; one of these Mr. Newton re- 
