Part 7 (2/2)

[100] John de Plano Carpini, Journey in 1246, p. 130. _Hakluyt Society_, London, 1904.

[101] Journey of William de Rubruquis in 1253, p. 188. _Hakluyt Society_, London, 1903.

[102] Volney, quoted in Malthus, Principles of Population, Chap. VII, p.

60. London, 1878.

[103] Genesis, Chap. XIII, 1-12.

[104] Herbert Spencer, Principles of Sociology, Vol. I. p. 457. New York.

[105] Heinrich von Treitschke, _Politik_, Vol. I, pp. 202-204. Leipzig, 1897.

[106] E.C. Semple, American History and Its Geographic Conditions, pp.

206-207. Boston, 1903.

[107] Roscher, _Grundlagen des National-Oekonomik_, Book VI.

_Bevolkerung_, p. 694, Note 5. Stuttgart, 1886.

[108] Edward John Payne, History of the New World Called America, Vol.

I, p. 303-313. Oxford and New York, 1892.

[109] Roscher, _National-Oekonomik des Ackerbaues_, pp. 31, 52.

Stuttgart, 1888.

[110] _Ibid._, p. 56, Note 5.

[111] For these and other averages, Sir John Lubbock, Prehistoric Times, pp. 593-595. New York, 1872.

[112] Roscher, _National-Oekonomik des Ackerbaues_, pp. 79-80, p. 81, Note 7. Stuttgart, 1888. William I. Thomas, Source Book for Social Origins, pp. 96-112. Chicago, 1909.

[113] Capt. J. Forsyth, The Highlands of Central India, pp. 101-107, 168. London, 1889.

[114] Tacitus, _Germania_, III.

[115] Roscher, _National-Oekonomik des Ackerbaues_, p. 32, Note 15 on p.

36. Stuttgart, 1888.

[116] E. Huntington, The Pulse of Asia, pp. 202, 203, 212, 213, 236-237.

Boston, 1907.

[117] Sheldon Jackson, Introduction of Domesticated Reindeer into Alaska, pp. 20, 25-29, 127-129. Was.h.i.+ngton, 1894.

[118] Quoted in Alexander von Humboldt, Aspects of Nature in Different Lands, pp. 62, 139. Philadelphia, 1849.

[119] Edward John Payne, History of the New World Called America, Vol.

I, pp. 311-321. 333-354, 364-366. New York, 1892.

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