6 Cincinnat, Society of Natural History. 
gona, L. willamettensis, now N. willamettensis; and from gray, fine- 
grained sandstone, at the mouth of Coose Bay, Pecten coosensis, and 
Venus securis. . 
Dr. Leidy* described, from the Pliocene of the Niobrara river, Ne- 
braska, Mastodon mirificus, Procamelus gracilis, P. robustus, P. occt- 
dentalis, Canis haydeni, C. sevus, C. temerarius, C. vafer, Felis in- 
trepidus, now Pseudelurus intrepidus, Aelurodon ferox, Hystrix ven- 
ustus, Castor tortus, Cervus warreni, Megalomerys niobrarensis, Mery- 
chyus elegans, M. major, M. medius, Hypohippus afinis, Parahippus 
cognatus, Equus excelsus, EL. fraternus, Protohippus perditus, Mery- 
chippus mirabilis, Rhinoceros crassus, Euelephas imperator, and from 
the red grit bed of Niobrara, near Fort Laramie (Miocene), Meryco- 
choerus proprius. 
In 1859, James Richardsont made a geological exane ane of the 
Gaspe peninsula, and observed two terraces in the drift tu the west of 
Trois Pistoles river, at 130 and 300 feet, respectively, above the sea, 
and another at the mouth of the Matanne. at the height of 50 feet. 
Stratified clay occurs at the head of lake Matapedia, 480 feet above the 
sea and near the outlet at the height of about 530 feet. Marine testacea 
occur in the terrace on the east side of the Matanne river at the height 
of 50 feet above the sea; about two miles west of the Metis river, at 
the height of 130 feet, and eight miles up the Metis river, at 245 feet 
above the sea. At the St. Anne river there are five or six terraces in 
a height of 25 feet, abounding in fragments of marine shells. Grooves 
and scratches were observed a half mile below Trois Pistoles church, 
60 feet above the sea, bearing 8S. 32 deg. E., and on the Kempt road, 
two miles from Lake ee age 630 feet above the sea, and bearing 8S. 
80 deg. E. 
W. E. Logant explored the river Rouge, a branch of the Ottawa, to 
the Iroquois Chute: about fifty miles from the mouth. He found an 
undisturbed deposit of clay on the left bank of the river, on the fourth 
range of Grenville, 280 feet above Lake St. Peter. In the rear of Gren- 
ville and front of Harrington, not far east of the Rouge, there spreads 
out a flat surface of several hundred acres in extent, which is under- 
laid by clay, and has a height of about 000 feet above Lake St. Peter. 
The plain of the three mountains has an elevation above the ordinary 
summer level of the river, of about 30 feet, and above Lake St. Peter of 
* Proc. Acad. Nat. Sci., vol. x. 
7 Rep. of Progr. Geo. Sur. of Canada. 
{ Geo. Sur. of Canada, Rep. of Progress. 
