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

by Ellen Churchill Semple

Henry Norman, All the Russias, pp. 254-255, 285-292. New York, 1902.

E.C. Semple, American History and Its Geographic Conditions, pp. 251-255. Boston, 1903.

E.F. Knight, Where Three Empires Meet, p. 6. London, 1897.

Strabo, Book IV, chap. VI, 7.

Alexis Krausse, Russia in Asia, pp. 361-362. New York, 1899.

Angus Hamilton, Afghanistan, pp. 137-141. New York and London, 1906. Henry Norman, All the Russias, pp. 276-277. New York, 1902.

Bella Gallico, Book IV, chap. IV.

Ibid., Book I, chap. XXXI; Book II, chap. III; Book IV, chap. I.

Journals of Dr. Thomas Walker and Christopher Gist, p. 129. Filson Club Publications, Louisville, 1898.

H.R. Schoolcraft, Indian Tribes of the United States, Vol. III, pp. 248-249. Philadelphia, 1853.