00953cam a22002651 4500 gs 51000086 DLC 20260227111357.0 720309s1950 oncabf b f000 0 eng c gs 51000086 (OCoLC)260095 U.S. Geol. Survey. Libr. OAkU OCoLC DLC premarc QE185 .A2 no. 256 QE741 .D25 Copy 2. Deane, Roy Eric, 1909- Pleistocene geology of the Lake Simcoe district, Ontario. Ottawa, E. Cloutier, King's Printer, 1950. vii, 108 p. illus., plates, 5 fold. maps (in pocket) fold. profile (in pocket) 25 cm. Canada. Geological Survey. Memoir 256 At head of title: Canada. Dept. of Mines amd Technical Surveys. Bibliography: p. 3. Geology, Stratigraphic Pleistocene. Geology Ontario Lake Simkoe district. 28535 28535