Note 129 — II A Sketch of the History of the Idea of Milieu Since the Beginning of the Nineteenth Century

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.