Earth Features and Their Meaning / An Introduction to Geology for the Student and the General Reader

by William Herbert Hobbs

I. C. Russell. Malaspina Glacier, Jour. Geol., vol. 1, 1893, pp. 219-245.

G. K. Gilbert. Harriman Alaska Expedition, vol. 3, Glaciers, 1904, pp. 231, pls. 37.

W. M. Conway. Climbing and Exploration in the Karakoram Himalayas, Maps and Scientific Reports, 1894, map sheets I-II.

Fanny Bullock Workman and William Hunter Workman. The Hispar Glacier, Geogr. Jour., vol. 35, 1910, pp. 105-132, 7 pls. and map.

The cycle of glaciation:—

William H. Hobbs. The Cycle of Mountain Glaciation, Geogr. Jour., vol. 36, 1910, pp. 146-163, 268-284.

Upper and lower cloud zones of the atmosphere:—

R. Assmann, A. Berson, and H. Gross. Wissenschaftliche Luftfahrten ausgeführt vom deutschen Verein zur Förderung der Luftschiffahrt in Berlin, 1899-1900, 3 vols.

E. Gold and W. A. Harwood. The Present State of our Knowledge of the Upper Atmosphere as Obtained by the Use of Kites, Balloons, and Pilot-balloons, Rept. Brit. Assoc. Adv. Sci., 1909, pp. 1-55.

W. H. Moore. Descriptive Meteorology, Appleton, New York, 1910, pp. 95-136.