[51] Common Salt: Its Use and Necessity for the Maintenance of Health and the Prevention of Disease, p. 1.

[52] Ibid., p. 37.

[53] Ibid., p. 41.

[54] The Congo, I., 383-385.

[55] Ibid., II., 21-24, 79-90.

[56] See Threshold Covenant, passim.

[57] Ibid., p. 5; Griffis's Mikado's Empire, pp. 467, 470; Isabella Bird's Untrodden Tracks in Japan, I., 392.

[58] See Blood Covenant, pp. 5-7.

[59] See Smith's Kinship and Marriage in Early Arabia, p. 48.

[60] Visit to Egypt, Nubia, etc., p. 242.