Page 165.
K. WEULE, Die Kultur der Kulturlosen (Stuttgart); F. RATZEL,
Anthropogeographie, vol. ii (1891), p. 693.
Page 167.
1. ED. HAHN, Die Haustiere (Leipzig, 1896), pp. 464, 465; A. DE
CANDOLLE, Origin of Cultivated Plants (New York, 1886), pp.
59 _et seq._, 139 _et seq._
2. KARL VON DEN STEINEN, Durch Centralbrasilien (1886), pp. 310
_et seq._; Unter den Naturvölkern Zentral-Brasiliens (1894),
pp. 210-212.
3. BERTHOLD LAUFER, “The Introduction of Maize into Eastern
Asia” (_Congrès International des Américanistes_, xv^e
Session, Quebec, 1907, vol. i, pp. 223 _et seq._,
particularly pp. 250-252). Regarding the introduction of
tobacco into eastern Asia, see J. REIN, in _Petermann’s
Mitteilungen_, vol. xxiv (1878), pp. 215 _et seq._
4. VICTOR HEHN, Kulturpflanzen und Haustiere (2d ed., Berlin,
1874).
Page 169.