^{page 127 note 1} “The Strength of the Earth's Crust”: Journ. Geol. (Chicago), vol. xxii, p. 313, 1914.Google Scholar The whole investigation is in eleven sections, scattered through vols. xxii–iii, 1914–15.

^{page 129 note 1} This term as used by the writer refers to the Great Ice Age of Pleistocene time. He holds that the occurrences of ice as a geologic agent of magnitude during eras preceding the Pleistocene were not “worldwide” nor as “phenomenal”, nor were they preceded, accompanied, nor followed by conditions as significant as corresponding phenomena of the Ice Age. Compte Rendu du XIème Congrès Géologique International, Stockholm, 1910, p. 1105.

^{page 129 note 2} Scott's Last Expedition, vol. ii, p. 206.Google Scholar

^{page 129 note 3} This part of the evidence is not considered in this paper except inferentially as bearing upon the general subject.

^{page 129 note 4} Scott, , The Voyage of the “Discovery”, vol. ii, p. 416Google Scholar. See also pp. 423–5, and sketch-map of ice distribution, p. 448.

^{page 129 note 5} Scott, , National Antarctic Expedition, 1900–1904, vol. i, p. 94.Google Scholar

^{page 129 note 6} Scott's Last Expedition, vol. ii, p. 294.Google Scholar

^{page 129 note 7} Ibid., p. 286.

^{page 129 note 8} Ibid., p. 288. See also photograph following pp. 286, 292.

^{page 130 note 1} Address to the Commonwealth Club, San Francisco, Calif., November 7, 1916.

^{page 130 note 2} Slight fluctuations in the retreat of the small residual glaciers in temperate latitudes are noted in the reports of the Commission on Glaciers of the International Geological Congress by Professor Harry Fielding Reid. But the great measures of the progressiveness of glacial retreat are in the past disappearance of the Pleistocene ice-fields of temperate latitudes and the present retreat in the Antarctic and Arctic regions.

^{page 130 note 3} See also Compte Rendu du XIème Congrès Géologique International, Stockholm, 1910, p. 1102.