Autograph Letter Signed, to Robert Kidston, about the discovery of cordaites, their distinguishing marks, etc. In French. 2 pp. 7 x 4½ inches, in good condition. Paris, 26 October 1901. Bernard Renault (1836 -1904), French paleobotanist. He was a specialist in regard to the anatomy of Carboniferous and Permo-Carboniferous Era flora. Robert Kidston, FRS (1852 -1924), Scottish palaeobotanist.