Part 11 (2/2)

[Footnote 75: E. W. Brown: personal communication.]

[Footnote 76: C. S. Slichter: The Rotational Period of a Heterogeneous Spheroid; in Contributions to the Fundamental Problems of Geology, by T. C. Chamberlin, _et al._, Carnegie Inst. of Wash., No. 107, 1909.]

[Footnote 77: E. Suess: The Face of the Earth, Vol. II, p. 553, 1901.]

[Footnote 78: Chas. Schuchert: The Earth's Changing Surface and Climate; in Lull: The Evolution of the Earth and Its Inhabitants, 1918, p. 78.]

[Footnote 79: J. Barren: Rhythms and the Measurement of Geologic Time; Bull. Geol. Soc. Am., Vol. 28, 1917, p. 838.]

[Footnote 80: Chas. Schuchert: _loc. cit._, p. 78.]

[Footnote 81: T. C. Chamberlin: Diastrophism, the Ultimate Basis of Correlation; Jour. Geol., Vol. 16, 1909; Chas. Schuchert: _loc. cit._]

[Footnote 82: Pirsson-Schuchert: Textbook of Geology, 1915, Vol. II, p.

982; Chas. Schuchert: Paleogeography of North America; Bull. Geol. Soc.

Am., Vol. 20, pp. 427-606; reference on p. 499.]

[Footnote 83: The general subject of the climatic significance of continentality is discussed by C. E. P. Brooks: continentality and Temperature; Quart. Jour. Royal Meteorol. Soc., April, 1917, and Oct., 1918.]

[Footnote 84: Chas. Schuchert: Climates of Geologic Time; in The Climatic Factor; Carnegie Inst.i.tution, 1914, p. 286.]

[Footnote 85: A. de Lapparent: Traite de Geologie, 1906.]

[Footnote 86: Chas. Schuchert: Historical Geology, 1915, p. 464.]

[Footnote 87: M. M. Metcalf: Upon an important method of studying problems of relations.h.i.+p and of geographical distribution; Proceedings National Academy of Sciences, Vol. 6, July, 1920, pp. 432-433.]

[Footnote 88: Chas. Schuchert: Paleogeography of North America; Bull.

Geol. Soc. Am., Vol. 20, 1910; and Willis, Salisbury, and others: Outlines of Geologic History, 1910.]

[Footnote 89: Chas. Schuchert: The Earth's Changing Surface and Climate; in Lull: The Evolution of the Earth and Its Inhabitants, 1918, p. 50.]

[Footnote 90: A. J. Henry: The Decrease of Precipitation with Alt.i.tude; Monthly Weather Review, Vol. 47, 1919, pp. 33-41.]

[Footnote 91: Chas. F. Brooks: Monthly Weather Review, Vol. 46, 1918, p.

511; and also A. J. Henry and others: Weather Forecasting in the United States, 1913.]

[Footnote 92: F. H. Knowlton: Evolution of Geologic Climates; Bull.

Geol. Soc. Am., Vol. 30, Dec., 1919, pp. 499-566.]

[Footnote 93: Talbert, quoted by I. Bowman: Forest Physiography, 1911, p. 63.]

[Footnote 94: J. Barrell: Rhythms and the Measurement of Geologic Time; Bull. Geol. Soc. Am., Vol. 28, 1917, pp. 745-904.]

CHAPTER XII

POST-GLACIAL CRUSTAL MOVEMENTS AND CLIMATIC CHANGES

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