[8] Mallery, Garrick: 'Pictographs of the North American Indians,' Rep. of Bur. of Ethnol., 1882-3, p. 13.
[9] Von den Steinen, Karl: 'Unter den Naturvôlkern Zentral-Brasiliens,' Berlin, 1894.
[10] Internal. Archiv s. Ethnog., Bd. IX.
[11] Cf. Andrée, Richard: 'Ethnographische Parallelen,' Neue Folge, Leipzig, 1889, S. 59.
[12] Haddon, op. cit.; Frazer, J.G.: 'Totemism,' 1887; Grosse, Ernst: Anfänge der Kunst,' Freiburg i. B. u. Leipzig, 1894.
[13] Boas, Franz: 'Decorative Art of the Indians of the North Pacific Coast,' Bulletin of Am. Mus. of Nat. Hist., Vol. IX.
[14] Mallery, G.: op. cit.; Haddon, A.C.: op. cit., p. 257; 'Decorative Art of British New Guinea,' Cunningham Memoir X., Royal Irish Acad., 1894, p. 26.
[15] Pierce E.: PSYCH. REV., 1894, I., p. 483; 1896, III., p. 270.
[16] A. Hildebrand, 'Das Problem der Form in der Bildenden Kunst,' Strassburg, 1897.