Preglacial Neidpath channel, gentle slopes, wide valley.

Present stage. Old moraine landscapes (1) outwash plains (3), and young moraine landscape (4). Tunnel valleys (8) with long lakes (8c, 8d) and fiord (8h). Post-glacial erosion valleys (10) in young moraine plateau (9). Continental dunes (12) on the outwash plain. Source: Atlas of Denmark.

Present stage of flat hills. High-level moraine plateau. 4. Flat hill. Ice-lake bottom. 5. Tapping gully. 6. Hummocky moraine landscape with lake holes, bogs and valleys. 7. Lake-basin area. A-C, see slide 44. B'. Moraine from dead-ice. Source: Atlas of Denmark.

Present stage of outwash plains. 2. Outwash plain. 3. Moraine landscape. a. Highest point of outwash plain. b. The ice-contact slope of the high outwash plain against the moraine landscape. c. Bog, overgrown lake. d. Lake. e. Marginal moraine. f. Boggy area. A. Moraine. C. Meltwater deposits. Source: Atlas of Denmark.

Map showing the close correlation between present topography and geologic structure in the Dominguez Hills oil field, California (Thornbury, 1956, p.583)

Pressure ridge in river ice at the convex side of the bend of the South Saskatchewan at Elbow.

Principle moraines, Victoria and Banks Islands (Raasch et al., 1961, v. 1, p. 411).

Principle relief features of the Pacific Ocean. Trenches slightly exaggerated in scale. Shepard, 1960, p. 171.

Diagram and model of a professional road at Babylon showing the application of bituminous. Diagram and photograph of model copied from a book.

Profiles across swells and swales (Gwynne, 1951, fig. 3).

Profiles across the Atantic and Pacific Oceans compared with the profile across the United States. Vertical exaggeration times 100 for all profiles. Shepard, 1960, p. 163.

Erosion surfaces. Profiles across an initially uplifted block showing successive stages in the cycle of erosion. 1-2, youth; 3-4, maturity; 5-6, old age. Holmes, 1953, p. 186.

Proximal end of parabolic dune showing inside stabilized, erosional area where sand blown out; Great Sand Hills area in sec. 29, T. 16, R. 21, W. 3.

Pseudocraters (formed by steam explosions when lava passed over wet ground) near Reykjavik, partly excavated for road material. Showing rugged topography excavations. August 1, 1960.

Pseudocraters (formed by steam explosions when lava passed over wet ground) near Reykjavik, partly excavated for road material. Looking into one of the pseudocraters. August 1, 1960.