[3] Keller, pp. 156-157.
[4] Ibid.
[5] Christie, W. D., Notes on Brazil, London, 1821, pp. 69-76.
[6] Christie, pp. 69-76.
[7] Dawson, Thomas C., South American Republics, two volumes, first edition, vol. I, New York, Copyright, 1903, p. 481.
[8] DuBois, The Negro, p. 152.
[9] Ibid. p. 184.
[10] Negro Population in the United States, 1790-1915, p. 33.
[11] Ingram, J. K., A History of Slavery and Serfdom, London, 1895, p. 285.
[12] Bureau of Census (Dept. of Commerce and Labor), A Century of Population Growth, Washington, 1909, p. 80.