Note 135 — II A Sketch of the History of the Idea of Milieu Since the Beginning of the Nineteenth Century
Reading edition
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.