[145] Talbot, Osseous Deformities.

[146] Osseous Deformities of the Jaw, p. 30.

[147] Hybridity and Heredity, p. 307.

[148] Cited by Keane, Ethnology, p. 265. See also Johnston, British Central Africa, 1897.

[149] Journal Am. Medical Ass., vol. xx., 1893.

[150] La Razza Negra, p. 20, 1864.

[151] Man and Woman, pp. 25, 390.

[152] Johnson, Chemistry of Common Life, vol. i. p. 239.

[153] Detroit Lancet, September, 1882.

[154] Observations on the Brain and Mind, p. 10, 1798.