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

by Ellen Churchill Semple

Albert J. Pickett, History of Alabama, pp. 118-119. 1851. Reprint, Birmingham, 1900.

Norway, Official Publication for the Paris Exhibition, pp. 5, 83-84. Christiania, 1900.

Albert J. Pickett, History of Alabama, pp. 416, 417, 461, 467. 1857. Reprint, Birmingham, 1900.

C. E. Akers, History of South America, 1854-1904, p. 435. New York, 1904.

H. R. Mill, International Geography, p. 883. New York, 1902.

Matias Romero, Mexico and the United States, pp. 433-441. New York, 1898.

E. Hertslet, The Map of Europe by Treaty, 1814-1875, Vol. I, pp. 422, 425, 426; Vol. II, p. 1430.

Eleventh Census of the United States, Population, Part I., map No. 10 and p. cxliii.

Ibid. Based on comparison of Tables 15 and 33 for the States mentioned.

W. Z. Ripley, Races of Europe, pp. 250-253. New York, 1899.