Influences of Geographic Environment / On the Basis of Ratzel's System of Anthropo-Geography

by Ellen Churchill Semple

Martha K. Genthe, The Valley Towns of Connecticut, Bull. of Amer. Geog. Society, Vol. 39, pp. 1-7. New York, 1907.

Ratzel, History of Mankind, Vol. III, pp. 181-182, 192. London, 1898.

H.R. Mill, International Geography, p. 495. New York, 1902.

W.Z. Ripley, Races of Europe, pp. 284-285. New York, 1899.

Ibid., Maps pp. 222, 340, 350.

Ibid., Maps pp. 402, 429.

J. Partsch, Central Europe, pp. 43, 241. London, 1903.

Ibid., p. 69. Sydow-Wagner, Methodischer Schul-Atlas, compare maps No. 13 and No. 25.

Elisée Reclus, Europe, Vol. IV, pp. 380, 389-390. New York, 1882.

W.Z. Ripley, Races of Europe, p. 318, map. New York, 1899.