[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.