We conclude, provisionally, that exogamy, for various reasons of sexual jealousy, and perhaps of sexual superstition, and of sexual indifference to persons familiar from infancy, may, at least, have tended to arise while each little human group was anonymous; before the acceptance of totem names by local groups. But this exogamous tendency, if it existed, must have been immensely reinforced and sweepingly defined when the hitherto anonymous groups, coming to be known by totem names, evolved the totem superstitions and tabus. Under these, I suggest, exogamy became fully developed. Marriage was forbidden, amours were forbidden (there are exceptional cases), within the totem name. This law barred, of course, marital relations between son and mother, between brother and sister, but, just as it stood, permitted incest between father and daughter, so long as the totem name was inherited from the mother. But that form of incest, in turn, came to be barred by another set of savage rules, which, whatever their origin, prohibit marriage _within the generation_. That set of rules, noted specially in Australia and North America, is part of what is usually styled ‘The Class System.’ [Footnote 1: Dr. Munro, _Archæological Journal_, vol. lix. no. 234, pp. 109-143: (_Tire à part_, p. 1.) See also later, _Hypothetical Early Groups_.] [Footnote 2: To this point, hostility, I return later.] [Footnote 3: Dr. Munro, _Archæological Journal_, vol. lix. no. 234.] [Footnote 4: Munro, _Archæological Journal_, vol. lix. no. 234, p. 22.] [Footnote 5: _Ibid._ p. 32.] [Footnote 6: _Ibid._ p. 18.] [Footnote 7: _Ibid._ p. 20.] [Footnote 8: _Ibid._ p. 22.] [Footnote 9: L’Anthropologie, Mars-Avril, 1902. For a brief bibliography of the bull-roarer see Mr. Frazer, _The Golden Bough_, iii. pp. 423-4, note 1.] [Footnote 10: _Journal and Proceedings Royal Society N.S.W._, vol. xxviii. p. 305. See also Roth, _Ethnological Studies_, pp. 132-138. 1897.] [Footnote 11: Ancient Law p. 132.] [Footnote 12: Major Kennedy’s portrait of 1750-1760 represents him in Macdonnell tartan. He was an agent of Prince Charles.] [Footnote 13: _Early History of Institutions_, pp. 310, 311.] [Footnote 14: Westermarck, _History of Human Marriage_, pp. 53-57.] [Footnote 15: Mr. John Mathew declares that ‘jealousy is a powerful passion with most aboriginal husbands’ in Australia. Messrs. Spencer and Gillen, on the other hand, represent the aboriginal husband as one of the most complacent of his species, jealousy being regarded as ‘churlish.’ Messrs. Spencer and Gillen are decidedly the better authorities. Mathew, _Jour. Roy. Soc. N.S.W._, xxiii. 404. Westermarck, p. 57. _Native Tribes of Central Australia_, p. 99.] [Footnote 16: _Studies in Ancient History_, 1876, p. 41.]