374 Scientific Intelligence, 
rounded pebbles, boulders, and sand ; it was arranged in distinctly 
horizontal layers, and had not been disturbed since its original 
deposition, It was a small patch preserved in a peculiar way 
tusk. The exact elevation of the spot where the tusk was foun 
is 5675 feet above the level of the sea, as determined by the rail 
. - 
is underlaid with sandstone, barren of fossils, that is ex * 
the higher ground, and this water-worn débris, deeper 
- On two new Ornithosaurians from Kansas ; by Epwanp D 
Corr. (Read before the American Philosophical Society, pve 
Ist, 1872.)—In this paper two species of Pterodactyls “te Pro- 
scribed, which are identical with two of those described by 
fessor Marsh in the last number of this Journal, pp. 241-247, 
viz: 
