FOOTNOTES:
[1] By this term we shall in future understand only that part of it which is responsible for thermal effects.
[2] If the figure of the earth is adjusted to its speed of rotation before the development of ice-sheets, the latter renders it too prolate, and there will be a tendency for readjustment by the transference of mass towards the equator.
[3] This has been the subject of much discussion recently. For a summary see Science Progress, 17, 1922, October, p. 233.
[4] Leverett, F. (see Bibliography).
[5] See reference to Antevs in this connexion.
[6] “The pulse of Asia,” p. 356. See also a new work by E. Huntington, entitled: “Climatic changes.”
[7] “Climatic variations in historic and prehistoric time.”
[8] “Sur le prétendu changement du climat européen en temps historique.”
[9] Or lemur-like ancestor. There is evidence to show that man’s ancestor was a nocturnal animal, whose food supply was governed by the phases of the moon.
[10] “Scientific monthly,” New York, 4, 1917, pp. 16-26.
[11] “Science progress,” 15, 1920, p. 74.
[12] “Climate and evolution.”
[13] “Civilization and climate.”