[93] See also Surgeon Fletcher’s report in the U.S. Geographical and Geological Survey of the Rocky Mountain Region, vol. v. 1882.

[94] Hist. de la Méd., tome vii. p. 208.

[95] Baas, Hist. Med., p. 70.

[96] Ibid.

[97] Ibid., p. 76.

[98] Lettres édifiantes et curieuses, tom. xxi. p. 5. Hottentots and negroes in Central Africa, according to Livingstone, have from remote times practised inoculation in a similar manner.

[99] Hist. de la Méd., vol. vii. p. 34.

[100] Pettigrew’s Medical Superstition, p. 24.

[101] Principles of Sociology, Herbert Spencer, vol. i. p. 374.

[102] Ibid.