Greenland glaciers: Chamberlin, Jour. of Geol., Vol. II, pp. 768–788; Vol. III, pp. 61–69, 198–218, 469–480, 565–582, 668–681, and 833–843; Vol. IV, pp. 582–592. Salisbury, Jour. of Geol., Vol. III, pp. 875–902, and Vol. IV, pp. 769–810.
Glaciers in general: Shaler and Davis, Illustrations of the Earth’s Surface; Forbes, Norway and its Glaciers, and Theory of Glaciers; Heim, Handbuch der Gletscherkunde.
[126] Reid. Natl. Geog. Mag., Vol. IV, p. 44.
[127] Rink’s Greenland.
[128] Reid. Variations of Glaciers. Jour. of Geol., Vols. III, p. 278; V, p. 378; VI, p. 473; VII, p. 217; VIII, p. 154; IX, p. 250, and X, p. 313.
[129] For example, in the Middle Blase Dale glacier, Island of Disco, Jour. of Geol., Vol. II, p. 784, and in the Bowdoin glacier ([Fig. 242]).
[130] Centimeter-gramme-second system. The rate of conductivity has not been very accurately determined.
[131] Russell. Jour. of Geol., Vol. III, p. 823.
[132] Geikie. The Great Ice Age, 3d ed., p. 529.
[133] Carried out by C. E. Peet and E. C. Perisho under the direction of one of the authors.