262 Tertiary. 



pebbles, underlies the gray and drab bowlder clay, which is overlaid 

 by gravel, sand, and gravelly earth. Marine shells were collected 

 along this river from the Grand Rapids, and along the Missinibi from 

 near Eo.und bay, all the way to Moose fo-cloxy. They appear to be 

 derived fyom a pebbl^y, drab clay, associated with the bowlder drift. 

 The greatest elevation above the sea at which they were collected, is 

 about 300 feet, but they were found along the Kenogami, a branch of 

 Albany river, at the height of 450 feet. Among the fossils collected 

 are, Rhynchonella psittaoea^ Leda truncata, L. pernula, Cardium 

 islandicum, TelUna grcenlandica, Macoma sabulosa, Saxicava arctica, 

 Balanus crenatus, Mya arenarki, 31. trimcnta, Mytilus edulis, and 

 BuGcmum undatum. 



Milne and Murray* found the drift on Newfoundland containing 

 shells similar to those still living. in the surrounding sea, as well as 

 striated angular stones, terraces, and raised beaches tending to show 

 that Newfoundland was at no very remote period below the present 

 level of the sea. The surface of the rocks is often roundly smoothed 

 and striated as if produced by coast-ice acting in a rising area. 



Prof E. D. Copef described, from the shaley of the Green River 

 Group, Wyoming, near the main line of the Wasatch mountains, Da2:>e- 

 doglossus testis, Diplomystus dentatus, D. anali.s, D. pectorosus, Eris- 

 matojjterus endlichi, Amphiplarja hrachyptera, Asineops paucira diatus, 

 Mioplosus abbreviatus, 31. labracoides, 3I.longus, 3I.beani, Priscacara 

 serrata, P. cypha^ aad P. Hops; from tlie Eocene of the Rocky moun- 

 tains, J; Clastes aganus, Trionyx radulus, T. ventricosus, Plastoynenus 

 serialis, Stypolophus Mans, Tomitherium tutum, Plesiarctomys bucca- 

 tus, Coryphodon obliquus, G. lobatus, Orotherium loewi; from the Loup 

 Fork Group, Canis wheeleranus, Dicrocerus trilateralis, and D. teh- 

 uanus; from the Eocene§ in Macon Co., Ga., Amphiemys oxy sternum; 

 from the Upper Miocene of Montana, Pithecistes brevifacies, Brachy- 

 meryx feliceps, Cyclopidius simus, C. heterodon, Blastomeryx bore- 

 alis ; from the Loup Fork Group of Northwestern Kansas, Dicotyles 

 serus, Tetralophodon campester ; from the Pliocene of Oregon, 

 Cervus fortis, Anchybopsis altarcus, A. angustarcus, A. gibbarcus ; 

 from Washington Territor\% Taxidea sulcata ; from Southwestern 

 Texas, Pseudemys bisornatus, Cisttido marnochi, Anchybopsis brevi- 

 nrcvs, and Crenobasileus tremoutigerus. 



* Geo. Mag. 2d ser., vol. iv. 

 t Bull. U. S. Geo. Sur. Terr., vol. iii. 

 I Wheeler's Sur. W. 100th Mer., vol. iv. 

 § Proc. Am. Phil. Soc. 



