
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 445 
implements was supposed, but not ascertained. Its interest atid connec- 
tion with human migrations were mentioned; also the supposition of 
Pomel, that the submergence of the West India Islands took place since 
the en pliocene period. 
Pror. O. C. Marsu described a ** remarkable locality of Vertebrate re- 
. mains in the tertiary of Nebraska." The herir singe was the Ante- 
lope Station on the Pacific Railroad in South-western Nebraska. While 
engaged in sinking a well at that place in June, pu a layer of bones was 
found by the workmen at a depth of sixty-eight feet below the surface, 
found that the latter were the remains of tertiary animals, some of whic 
were of great interest. The well was subsequently sunk about ten feet 
deeper. An examination proved that among them there were four kinds 
of fossil horses, one of which he described in November last as Equus 
parvulus. Although it was a full-grown animal it was not more than two 
and one-half feet high. It was by far the smallest horse ever discovered. 
Of the other kind of fossil horses one was of the Hipparion type, or the 
three-toed horse. Including the above the number of species of fossil 
t 
double metatarsal bone, a peculiar type, only seen in the living musk deer 
and in the extinct anaplotherium. There were also the remains of an 
"ul like the hog, a large capes and two kinds of turtles. These, 
to, yea diu fifteen species of animals, and representing eleven 
senera, w ll found in a space tin feet in diameter and six or eight feet 
in depth. cA is supposed that the locality was once the shores of a great 
ie and that the animals were mired when they went down to the water 
rink. 

. W. P. Brake read a paper “On the Plasticity of Pebbles and 
Rocks." He presented some fresh evidence from a conglomerate in 
zona Territo This conglomerate consisted of a paste of micaceous 
Schist, filled with bebidas of varying size, and elongated and co ssed 
similar to those of the Newport conglomerate. They seconde even 
ore conclusive evidence of having been drawn out, and compressed b. 
ns 



Prof. Blake then adduced arguments and one tending to substantiate thi 
theory. The distortion of hard rocks nd on a large scale in the 
found 
_ flanks of the Sierra Nevada of California. roo Blake said that the con- 
 Sideration of the phenomena led him to conclude that enormous and long 

