Evolution in Modern Thought - Thomson, J. Arthur, 1861-1933 (John Arthur); Haeckel, Ernst, 1834-1919; Bateson, William, 1861-1926; Schwalbe, Gustav Albert, 1844-1916; Bury, J. B., 1861-1927 (John Bagnell); Waggett, P. N., 1862-1939 (Philip Napier); Morgan, C. Lloyd, 1852-1936 (Conwy Lloyd); HÃ¸ffding, Harald, 1843-1931; BougleÌ, CeÌlestin Charles Alfred, 1870-1940; Weismann, August, 1834-1914 (Project Gutenberg, 2007)