Huxley, Thomas Henry (1825–1895)
Osborn, Henry Fairfield (1857–1935)
Haeckel, Ernest (1834–1919)
Haeckel, Ernest (1834–1919)
Mason, Frances
Darwin, Charles Robert, (1809–1882)
Darwin, Charles Robert, (1809–1882)
Haeckel, Ernest (1834–1919)
Haeckel, Ernest (1834–1919)
Poulton, Edward Bagnall (1856–1943)