DUBOC, JULIUS (1829-1903), German author and phi losopher, was born on Oct. 1 o, 1829, at Hamburg, and died on June II, 1903, at Dresden. He studied at both Leipzig and Ber lin and became a disciple of Feuerbach. Evolutionary monism, atheism, and the doctrine that pleasure is the end of all human activity find expression in his works, which include Soziale Briefe (3rd ed. 1873) ; Die Psychologie der Liebe (1874) ; Das Leben ohne Gott (1875); Hundert Jahre Zeitgeist in Deutschland (1889) ; and Die Lust als sozialethisches Entwicklungsprinzip (1900).