CROS, (MILE-HORTENSIUS-) CHARLES

born Oct. 1, 1842, Fabrezan, Fr. died Aug. 10, 1888, Paris French inventor and poet whose work in several fields foreshadowed or paralleled important developments. In 1869 Cros published a theory of three-colour photography similar to the more influential ideas advanced by Louis Ducos du Hauron in the same year. In his book tudes sur les moyens de communication avec les plantes (1869; Studies on the Means of Communication with the Planets), he projected a huge concave mirror with focal length equal to the distance of Mars or Venus from the Earth. Sunlight concentrated by the mirror would fuse the planetary surface in geometric patterns that would presumably be intelligible to higher forms of life anywhere in the universe. Cros invented a phonograph (palophone) in 1877, the year in which Thomas A. Edison of the United States made his first recording. Cros's most important poetical work, Le Coffret de santal (1873; The Sandalwood Chest), in the Symbolist vein, was praised by Paul Verlaine and may have influenced Arthur Rimbaud as well as 20th-century French Symbolists. An anthology of his Pomes et proses, edited by Henri Parisot, appeared in 1944.