[51] Uhland, Alte hoch und niederdeutsche Volkslieder I (1844), p. 339 cited by Sombart: Der moderne Kapitalismus, Leipzig, 1902, I, pp. 384–5.
[52] Inama-Sternegg, Deutsche Wirtsch.-Gesch. I, Leipzig, 1879, p. 59.
[53] Westermarck, History of Human Marriage, London, 1891, p. 368.
[54] Cf. Ratzel, l. c. I, p. 81.
[55] Ratzel, l. c. I, p. 156.
[56] Ratzel, l. c. I, pp. 259–60.
[57] Ratzel, l. c. II, p. 434.
[58] I. Kulischer, l. c., p. 317, where other examples may be found.
[59] Westermarck, History of Human Marriage, p. 400, which contains a number of ethnographical examples.