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

by Ellen Churchill Semple

Albert Gallatin, Report on the Indians in 1836, reprinted in Eleventh Census, Report on the Indians, p. 33. Washington, 1894.

Cyrus Thomas, Indians of North America in Historical Times, pp. 94, 96. Vol. II of History of North America, Philadelphia, 1903.

Ibid., Vol. II, pp. 100-101.

Anatole Leroy-Beaulieu, The Empire of the Tsars, Vol. III, pp. 333-334. New York, 1902.

W.Z. Ripley, Races of Europe, pp. 437-438. New York, 1899.

D.G. Brinton, The American Race, pp. 115-116. Philadelphia, 1901.

H. Bancroft, The Native Races, Vol. III, pp. 559, 635-638. San Francisco, 1886.

Cyrus Thomas, Indians of North America in Historical Times, pp. 381-382, Vol. II of History of North America. Philadelphia, 1903.

Eleventh Census, Report on the Indians, p. 35. Washington, 1894.

Eleventh Census, Report on Population, Vol. I, p. cxxxviii. Washington, 1894.