THE CAUSE OF THE GLACIAL PERIOD. 505 



and Kenogami Rivers up to a height of about four hundred and 

 fifty feet ; * and on the Attawapishkat to about five hundred 

 feet above the sea.f It is also evident that the shores of Hud- 

 son Bay are still undergoing elevation,^ unlike the eastern coast 

 of the United States and Canada, where the post-glacial uplift- 

 ing has ceased, and there is now in progress a very slow sub- 

 sidence of the land from New Jersey to the Gulf of St. Law- 

 rence. 



Scantier but yet conclusive proofs of the uplift of British 

 Columbia after glaciation are found in the valley of the Fraser 

 River, and on the Pacific coast, in Vancouver Island and the 

 Queen Charlotte Islands. Lamplugh has observed recent ma- 

 rine shells in a railway cutting on the west bank of the Harri- 

 son River, near its junction with the Fraser, at an elevation 

 not less than one hundred feet above the sea. # At New West- 

 minster, on the Fraser, near its mouth, raised beaches inclos- 

 ing fragments of marine shells are reported by Bauerman about 

 thirty feet above the river. || Fossiliferous marine deposits 

 found in the vicinity of Victoria and Nanairno, in the south- 

 east part of Vancouver Island, at small elevations above the 

 sea, are believed by Dr. Gr. M. Dawson to have been formed at 

 or near the wasting edge of the ice-sheet ; A and near the mid- 

 dle of the northeast side of this island two distinct deposits of 

 till occur, with intervening beds of loess-like silts, from which 



* " Geological and Natural History Survey of Canada, Report of Progress 

 for 1871-72," p. 112; for 1875-'76, p. 340 ; "Annual Report," vol. ii, for 

 1886, pp. 34 and 38 G. 



f " Geological and Natural History Survey of Canada, Annual Report," vol. 

 ii, p. 27 G. 



% '' Geological and Natural History Survey of Canada, Report of Progress 

 for 1877-'78," pp. 32 C and 25 CC; for 1878-'79, p. 21 C; for 1882-'83-'84, 

 pp. 26 and 30 DD ; " Annual Report," vol. i, for 1885, p. 11 DD. 



* u Quarterly Journal of the Geological Society," vol. xlii, 1886, pp. 284, 286. 

 (| " Geological and Natural History Survey of Canada, Report of Progress 



for 1882-'83-'84," p. 33 B. 



A " Geological and Natural History Survey of Canada, Annual Report," vol. 

 ii, for 1886, p. 99 B ; "Quarterly Journal of Geological Society," vol. xxxiv, 

 1878, pp. 97, 98, and vol. xxxvii, 1881, p. 279. Compare also Mr. G. W. Lamp- 

 lugh'? observations of glacial shell-beds at Esquimault, near Victoria, " Quar- 

 terly Journal of Geological Society," vol. xlii, 1886, pp. 276-284 



