[127]. 2 vols., München, 1893; see vol. 2, 2nd ed.: Politische Geographie der Vereinigten Staaten von Amerika, unter besonderer Berücksichtigung der natürlichen Bedingungen u. wirtschaftlichen Verhältnisse (763 pp.), esp. pp. 1–176.

[128]. London, 1896 (this is a translation of his Völkerkunde, 1887/8), cf. the opening pp. of vol. 1.

[129]. In Helmolt, The History of the World (N. Y., 1902), vol. 1, pp. 62–103, where Ratzel discusses in turn The Coherence of Countries, The Relation of Man to the Collective Life of the Earth, Races and States as Organisms, Historical Movement, Natural Regions, Climate and Location, Geographical Situation, Area, Population, The Water-Oceans, Seas, and Rivers, Conformation of the Earth’s Surface.

[130]. London & N. Y.: Longmans, 1915.

[131]. See The Nation, N. Y., March 18, 1915, p. 310.

[132]. Paris, 1911, 420 pp.

[133]. Semple, l.c., p. VI; cf. also Ratzel, Anthropogeogr., I,2 p. XII.

[134]. Archiv f. Sozialwissenschaft, Bd. IV (1906), pp. 581–630.

[135]. For Ratzel, cf. also Paul Barth, Die Philosophie der Geschichte als Soziologie, I (Leipzig: Reisland, 1897), pp. 227–30; Jean Brunhes, La Géographie Humaine, 2e éd. (Paris: Alcan, 1912), pp. 39–47.

[136]. Buckle, History of Civilization (1867), p. 32 n.