[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 Institution, 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 relationship 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 Altitude; 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 An interesting practical application of some of the preceding generalizations is found in an attempt by C. E. P. Brooks[95] to interpret post-glacial climatic changes almost entirely in terms of crustal movement. We believe that he carries the matter much too far, but his discussion is worthy of rather full recapitulation, not only for its theoretical value but because it gives a good summary of post-glacial changes. His climatic table for northwest Europe as reprinted from the annual report of the Smithsonian Institution for 1917, p. 366, is as follows: _Phase_ _Climate_ _Date_