La valeur de la science : par H. Poincaré. Poincaré, Henri, 1854-1912. Science Philosophy. 501 POL Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212 Paris : Flammarion, c1911. c1911. 1911 Text 278 p. fre Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212 Bibliothèque de philosophie scientifique