Map of Great Lakes region showing the general distribution of end moraines formed after the Wisconsin stage of the Pleistocene. The moraines are shown in heavy black lines. The shaded area was never covered by the Pleistocene ice sheet. The area between the Wisconsin drift boundary and pre-Wisconsin Pleistocene deposits (Zumberge, 1958, p. 348).

Map of glacial features in Cree Lake area, Saskatchewan.

Map of Dollard drumlin field, Sask.

Map of California showing topographic provinces and the principal faults. 1. Ocean, with approximate edge of continental crust indicated by dotted line. 2. Major mountain areas. 3. Lowlands and minor mountain areas. 4. San Andreas fault. 5. Other high angle faults, active or recently active. 6. Inactive high-angle faults of earlier systems. King 1959, p. 165.

Map of bituminous surface deposits in the Middle East. Map copied from a book.

Map of Aleutians, an island arc with an adjacent arcuate trench on its convex side. Zumberge, 1958, p. 23.

Mammoth tooth (Elphas primigenius, lower left second generation molar) from near Qu-Appelle, Sask. Mastodon tooth from near Jansen, Sask (Anterior end of the left upper third molar of Mastodon americanus)

Mammoth Hot Springs, Yellowstone National Park, Wyoming.

Malaspina Glacier, Alaska, map. Arrows indicate flow of valley glaciers that feed the Malaspina. (Gilluly et al., 1959, p. 225).

Major tectonic framework of northern Canada (Raasch et al., 1961, v. 1, p. 443).

Major soil zones in Saskatchewan (Mitchell et al., 1947)

Major floras of Pennsylvanian and Permian time (Agar 1930, p. 293).

Main physiographic and geological regions of Canada. G.S.C, Econ. Geol. 1, p. 2.

Magnetic field of the earth. Top chart shows the total field, which has a regular component, as might be produced by a bar magnet in the earth's core and an irregular component. The bottom chart shows the irregular component alone. This is obtained by subtracting a uniform north-south field from the total observed field. In the top chart the arrows indicate the direction in which a compass needle would point if there were no axial field. Runcorn, 1955, Sci. Am., v. 193, no. 3, p. 153.