[334] A.R.  Wallace, Geographical Distribution of Animals, Vol.  I, pp. 313, 321-322.  London, 1876.

[335] Anatole Leroy-Beaulieu, The Empire of the Tsars, Vol.  I, ethnographical map.  New York, 1893.

[336] Eleventh Census of the United States, Population, Part I., maps on pp. xviii-xxiii.

[337] L. March Phillipps, In the Desert, pp. 64-68, 77.  London, 1905.

[338] Fully treated in E.C.  Semple, American History and Its Geographic Conditions, pp. 22-31.  Boston, 1903.

[339] Sir S.W.  Baker, The Nile Tributaries of Abyssinia, pp. 88, 128-129, 135.  Hartford, 1868.

[340] Norway, Official Publication for the Paris Exhibition, pp. 3-4 and map.  Christiania, 1900.

[341] J. Partsch, Central Europe, p. 297.  London, 1903.

[342] Caesar, Bello Gallico, Book IV, chap. 3 and Book VI, chap. 23.

[343] Ibid., Book VI, chap. 10.

[344] T. Hodgkin, Italy and Her Invaders, Vol.  II, p. 56, Note I. Oxford, 1892.

[345] Helmolt, History of the World, Vol.  IV, p. 510.  New York, 1902-1906.

[346] Grote, History of Greece, Vol.  IX, chap. 70, pp. 99, 115.  New York, 1859.

[347] Dr. Wilhelm Junker, Travels in Africa, pp. 18, 45, 79, 87, 115, 117, 138, 191, 192, 200, 308, 312, 325, 332.  Translated from the German.  London, 1892.

[348] H. Barth, Human Society in North Central Africa, Journal Royal Geographical Society, Vol.  XXX, pp. 123-124.  London, 1860.

[349] Boyd Alexander, From the Niger to the Nile, Vol.  II, pp. 163-164.  London, 1907.

[350] John H. Speke, Discovery of the Sources of the Nile, pp. 74, 89, 91, 94, 95, 173, 176-177, 197.  New York, 1868.

[351] Theodore Roosevelt, The Winning of the West, Vol.  I, pp. 50, 70, 135.  New York, 1895.

[352] C. C. Royce, The Cherokee Nations of Indians, p. 140. Fifth Annual Report of the Bureau of Ethnology.  Washington, 1884.

[353] Albert J. Pickett, History of Alabama, pp. 79-89, 113-115, 1851.  Reprint, Birmingham, 1900.  James Adair, History of the American Indians, p. 257.  London, 1775.

[354] Ibid., pp. 252-3, 282.

[355] Albert J. Pickett, History of Alabama, pp. 133-135. 1851.  Reprint, Birmingham, 1900.

[356] Archibald Little, The Far East, p. 249.  Oxford, 1905.

[357] M. Huc, Travels in Tartary, Thibet and China, 1844-1846, Vol.  I, p. 74.  Translated from the French.  Reprint, Chicago, 1898.

[358] Nachtigal, Sahara und Sudan, Vol.  I, pp. 102, 448; Vol.  III, pp. 203-205, 314.  Leipzig, 1889.  Boyd Alexander, From the Niger to the Nile, Vol.  II, p. 170.  London, 1907.

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

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