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

by Ellen Churchill Semple

W.Z. Ripley, Races of Europe, pp. 216-218. New York, 1899.

Ibid., 344-347, 356, 365.

Elisée Reclus, Europe, Vol. IV, pp. 309-310. New York, 1882.

Anatole Leroy-Beaulieu, Empire of the Tsars, Vol. I, p. 107. New York, 1893.

H.R. Mill, International Geography, pp. 220-222. New York, 1902.

Vidal-Lablache, Atlas Général, Maps pp. 63, 64, 93. Paris, 1909.

H.R. Mill, International Geography, 174, 177-182. New York, 1902.

Twelfth Census, Bulletin of Agriculture No. 181, p. 2, compared with Eleventh Census, Statistics of Population, map of negro distribution, p. XCVII. Washington, 1895.

Twelfth Census, Bulletin of Agriculture, No. 155, p. 2. Washington, 1902.

W.Z. Ripley, Races of Europe, p. 353. New York, 1899.