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

by Ellen Churchill Semple

Matthias Romero, Mexico and the United States, Vol. I, p. 79. New York, 1898.

From a personal interview with the supervising agent for South America.

Heinrich von Treitschke, Politik, Vol. I, p. 212 et seq. Leipzig, 1897.

Henry Buckle, History of Civilization in England, Vol. I, p. 32. New York, 1884.

G.G. Chisholm, Commercial Geography, pp. 320-324. London, 1904.

Anatole Leroy-Beaulieu, Empire of the Tsars, Vol. I, pp. 6, 139-144. New York, 1893.

Norway, Official Publication, p. 308. Christiania, 1900.

A. Leroy-Beaulieu, Empire of the Tsars, Vol. I, pp. 19, 142, 327. New York, 1893.

G.G. Chisholm, Commercial Geography, pp. 214, 315. London, 1904.

A. Leroy-Beaulieu, Empire of the Tsars, Vol. I, pp. 412-413. New York, 1893.