Note: First edition in English. LUMEN first appeared in French as RECITS DE L'INFINI in 1873; an enlarged edition followed in 1887 as LUMEN. The revised text of LUMEN was translated into English and published in New York in 1892 by Cassell (apparently an unauthorized edition) and in London in 1897 by Heinemann (apparently an authorized edition with further revisions by Flammarion). The earlier Roberts Brothers text follows Flammarion's original 1873 text. source: L. W. Currey, Inc.