On the fresh-water glacial drift of the Northwestern states.
Whittlesey, Charles, 1808-1886.
On the fresh-water glacial drift of the Northwestern states. By Charles Whittlesey. - [Washington, Smithsonian Institution, 1866] - v, 32 p. front. (map) illus., fold. pl. 33 cm. - Smithsonian contributions to knowledge. [vol. XV, art. 3] Smithsonian Institution publication 197. .
s 13000067
Geology--Northwestern States.
Glacial epoch.
Q11 / .S68 vol. 15
On the fresh-water glacial drift of the Northwestern states. By Charles Whittlesey. - [Washington, Smithsonian Institution, 1866] - v, 32 p. front. (map) illus., fold. pl. 33 cm. - Smithsonian contributions to knowledge. [vol. XV, art. 3] Smithsonian Institution publication 197. .
s 13000067
Geology--Northwestern States.
Glacial epoch.
Q11 / .S68 vol. 15