Climatic Changes: Their Nature and Causes

by Ellsworth Huntington; Stephen Sargent Visher

[125] A. Penck: Die Alpen im Eiszeitalter, Leipzig, 1909.

[126] R. D. Salisbury: Physical Geography of the Pleistocene, in Outlines of Geologic History, by Willis and Salisbury, 1910, pp. 273-274.

[127] Davis, Pumpelly, and Huntington: Explorations in Turkestan, Carnegie Inst. of Wash., No. 26, 1905.

In North America the stages have been the subject of intensive studies on the part of Taylor, Leverett, Goldthwait, and many others.

[128] Double star.

[129] E. Kirk: Paleozoic Glaciation in Alaska; Am. Jour. Sci., 1918, p. 511.

[130] J. Milne: Catalogue of Destructive Earthquakes; Rep. Brit. Asso. Adv. Sci., 1911.

[131] Wm. Bowie: Lecture before the Geological Club of Yale University. See Am. Jour. Sci., 1921.

[132] Chas. Davisson: On the Annual and Semi-annual Seismic Periods; Roy. Soc. of London, Philosophical Transactions, Vol. 184, 1893, 1107 ff.

[133] C. G. Knott: The Physics of Earthquake Phenomena, Oxford, 1908.