4. Even primary conditions of material well-being, if not reacted upon by social science or a movement of freethought, may in a comparatively advanced civilization promote religious degeneration. Thus abundance of food is favourable to multiplication of sacrifice, and so to priestly predominance. [335] The possession of domesticated animals, so important to civilization, lends itself to sacrifice in a specially demoralizing degree. But abundant cereal food-supply, making abundant population, may greatly promote human sacrifice--e.g., Mexico. The error of Mr. Lang's method is seen in the use he makes (work cited, pp. 286-289, 292) of the fact that certain "low" races--as the Australians, Andamanese, Bushmen, and Fuegians--offer no animal sacrifice. He misses the obvious significance of the facts that these unwarlike races have as a rule no domesticated animals and no agriculture, and that their food supply is thus in general precarious. The Andamanese, sometimes described (Malthus, Essay on Population, ch. iii, and refs.; G. W. Earl, Papuans, 1853, pp. 150-51) as very ill-fed, are sometimes said to be well supplied with fish and game (Peschel, Races of Man, Eng. tr. 1876, p. 147; Max Müller, Anthrop. Rel. citing Cadell, p. 177); but in any case they have had no agriculture, and seem to have only occasional animal food in the shape of a wild hog (Colebrooke in Asiatic Researches, iv, 390). The Australians and Fuegians, again, have often great difficulty in feeding themselves (Peschel, pp. 148, 159, 334; Darwin, Voyage, ch. 10). It is argued concerning the Australian aborigines that "as a rule they have an abundance" (A. F. Calvert, The Aborigines of Western Australia, 1894, p. 24); but this abundance is made out by cataloguing the whole edible fauna and flora of the coasts and the interior, and ignores the fact that for all hunting peoples food supply is precarious. For the Australian, "the difficulty of capturing game with his primitive methods compels him to give his whole time to the quest of food" (Keane, Man, p. 148). In the contrary case of the primitive Vedic Aryans, well supplied with animals, sacrifices were abundant, and tended to become more so (Müller, Nat. Relig. pp. 136, 185; Physical Relig. p. 105; but cp. pp. 98, 101; Mitchell, Hinduism, p. 43; Lefmann, Geschichte des alten Indiens, in Oncken's series, 1890, pp. 49, 430-31). Of these sacrifices that of the horse seems to have been in Aryan use in a most remote period (cp. M. Müller, Nat. Rel. pp. 524-25; H. Böttger, Sonnencult der Indogermanen, Breslau, 1891, pp. 41-44; Preller, Römische Mythologie, ed. Köhler, pp. 102, 299, 323; Griechische Mythologie, 2te Aufg. i, 462; Frazer, Golden Bough, ii, 315). Max Müller's remark (Physical Religion, p. 106), that "the idea of sacrifice did not exist at a very early period,"