Stages in the life history of a stream. A. In the initial stage a stream has lakes, waterfalls and rapids. B. By middle youth the lakes are gone, but falls and rapids persist along the narrow incised gorge. C. Early maturity brings a smoothly graded profile without rapids or falls, but with the beginning of a floodplain. D. Approaching full maturity, the stream has a flood plain alomost wide enough to accommodate its meanders. E. Full maturitymis marked by a broad flood plain and freely developed meanders: levee, oxbow lake, yazoo stream, alluvium, bluffs, flood plain. Strahler, 1960. p. 350.

Glacial history Moose Mountain area - phase No. 3.

Glacial history Moose Mountain area - phase No. 4.

Glacial history Moose Mountain area - phase No. 1.

Glacial history Moose Mountain area - phase No. 2.

Glacial history Moose Mountain area - phase No. 5.

Illustration of smelting bitumen from bituminous rocks after Agricola, 1550. Illustration copied from book.

Distillation apparatus. Diagram copied from a book.

Illustration of oil production and refining after Agricola, 1550. Illustration copied from book.

Castroides. Skull of the giant Pleistocene beaver (top) compared with the skull of the living form. The history of the beaver is typical of the history of many mammals in that the living forms are smaller than their leistocene predecessors. In general, the larger members of any fauna disappear in times of stress. Stokes, 1960, p. 444.

This fonds contains correspondence and resource material relating to Dr. Kupsch's research, particularly on Frank Davies, Balfour Currie, and the Second International Polar Year; as well as both published and unpublished material from "Gold and Other Stories" and the "Musk-Ox." Additionally, there is considerable reference material relating to uranium mining and nuclear energy, documenting both sides of the ongoing debate over the use of uranium. This fonds also contains an extensive collection of images, documenting 50 years of Dr. Kupsch's field work in northern Saskatchewan and northern Canada, as well as a variety of images relating to the history of geology.

Hawaii and seamounts. Topographical profile across Hawaiian Islands. Profiles showing postulated history of seamounts int he Gulf of Alaska. Jacobs et al., 1959, p. 272.

Post-Pleistocene fossil tree trunk, about 10,000 years old. Locality: lsd. 11, sec. 23, T. 15, R. 29, W. 2, 1 1/2 miles NW of Lillestrom, Saskatchewan. Photo taken in front of the Museum of Natural History, Regina.