[716] Henry M. Stanley, Through the Dark Continent, Vol.  II, pp. 227-228.  New York, 1879.

[717] Article, Cossack, Encyclopedia Britannica.

[718] Parkman, The Jesuits in North.  America, pp. 292-303, 498-505, 534, 535.  Boston, 1904.

[719] Livingstone, Missionary Travels, pp. 100, 102.  New York, 1858.

[720] Livingstone, Last Journals, Vol.  I, p. 359.  London, 1874.

[721] Heinrich Barth, Travels in North and Central Africa, Vol.  II, pp. 64, 66, 233.  New York, 1857.  Boyd Alexander, From the Niger to the Nile, Vol.  I, pp. 237, 303-304, 320, 331-336; Vol.  II, pp. 54, 56-58, 67-68, 96-99, 104-105.  London, 1907.

[722] J.P.  McLean, The Mound Builders, p. 20.  Cincinnati, 1904.  Squier and Davis, Ancient Monuments of the Mississippi Valley, pp. 6, 9, 10.  New York, 1848.

[723] Caesar, Bello Gallico, Book I, chaps. 38, 39.

[724] Elisee Reclus, Europe, Vol.  IV, pp. 101-102.  New York, 1882.

[725] John Fiske, Dutch and Quaker Colonies in America, Vol.  I, p. 241.  Boston.

[726] H.E.  Mill, International Geography, p. 956.  New York, 1902.

[727] H.B.  George, Historical Geography of the British Empire, pp. 259-260.  London, 1904.

[728] Alexis Krausse, Russia in Asia, pp. 30-33, 50.  New York, 1899.

[729] H.J.  Mackinder, Britain and the British Seas, pp. 198-199.  London, 1904.

[730] John Richard Green, The Making of England, Vol.  I, pp. 63, 66.  London, 1904.

[731] J. Partsch, Central Europe, p. 102.  London, 1903.

[732] Miller and Skertchley, The Fenland Past and Present, pp. 10, 11, 27-30.  London, 1878.

[733] W.Z.  Ripley, Races of Europe, pp. 322-323.  Map p. 327.  New York, 1899.

[734] Anatole Leroy-Beaulieu, The Empire of the Tsars, Vol.  I, p. 108.  New York, 1893.

[735] Ibid., pp. 104-106.  W.Z.  Ripley, Races of Europe, pp. 340-342, 352, 365.  New York, 1899.

[736] J. Partsch, Central Europe, p. 135.  London, 1903.

[737] Ibid., p. 133.  W.Z.  Ripley, Races of Europe, pp. 294-295.  New York, 1899.

[738] Herodotus, II, 137, 140.

[739] Thucydides, I, 110.  Brugsch-Bey, History of Egypt, Vol.  II, p. 333.  London, 1881.

[740] John Richard Green, History of the English People, Vol.  I, chap.  III, p. 71.

[741] Miller and Skertchley, The Fenland Past and Present, pp. 83, 101, 104, 107, 108.  London, 1878.

[742] Tacitus, History of the Germans, Book VI, chap.  VI.  Motley, Rise of the Dutch Republic, Vol.  I, pp. 2-5, 13.  New York, 1885.

[743] J. Partsch, Central Europe, p. 299.  London, 1903.

[744] Miller and Skertchley, The Fenland Past and Present, pp. 113-114.  London, 1878.

[745] Edward John Payne, History of the New World Called America, Vol.  I, pp. 327-328, 502-503.  Oxford, 1892.  Ratzel, History of Mankind, Vol.  II, p. 163.  London, 1896-1898.