Schriftsteller (1859-1941). 5 autogr. letters signed. 8vo. 13pp.
$ 4,811 / 4.500 €
1) 18 May 1911: Departs for Oxford, where he is to lecture. 2) 20 Sept. 1918, having returned from New York, to Alfred Rebelliau: an American magazine is waiting for an article on the religious movement in France. 3) 24 Sept. 1918, to Eugene-Louis Bouvier, thanking him for his book on "the psychic life of the entire insect [...] thoroughly, and in its purely mechanical reactions, and in its instinctive activity, and in its intelligent manifestations. [...] the role of science is to push as far as possible the 'rationalization' of instinct […]".