[143] Motley, Rise of the Dutch Republic, Vol. I, p. 5. New York, 1883.

[144] John Richard Green, The Making of England, Vol. I, p. 46. London,
1904.

[145] Hodgkin, Italy and Her Invaders, Vol. V, pp. 99-101. Oxford,
1895.

[146] _Ibid._, Vol. V, pp. 156-157.

[147] Hodgkin, Italy and Her Invaders, Vol. II, pp. 107, 195. Oxford,
1892.

[148] _Ibid._, Vol. II, pp. 219-223, 230.

[149] W.Z. Ripley, Races of Europe, pp. 276-277. New York, 1899.

[150] Hodgkin, Italy and Her Invaders, Vol. II, pp. 214-219. Oxford,
1892.

[151] Ratzel, History of Mankind, Vol. II, p. 296. London, 1896-1898.

[152] McGee and Thomas, Prehistoric North America, pp. 408-412, Vol. XIX
of _History of North America._ Philadelphia, 1905.

[153] Hugh R. Mill, International Geography, p. 858. New York, 1902.

[154] Roscher, _National-Oekonomik des Ackerbaues,_ pp. 44-48.
Stuttgart, 1888.