By Chapman, Frank M. (Frank Michler), 1864-1945 . Genre n------ / Birds / North America . Names america / eye / spotted / island / grasses and 4258 more

By Coulter, John Merle, 1851-1928 / Coulter, John G. (John Gaylord), b. 1876 / Patteron, Alice Jean. . Genre Nature study . Names plants / soil / leaves / seeds / flowers and 2285 more

By Tyndall, John, 1820-1893 . Genre Communicable diseases / etiology / History / Air Microbiology . Names bacteria / life / called / eye / seeds and 1325 more

By Hickson, Sydney John, 1859-1940 . Genre Marine animals . Names sea / animals / fish / life / animal and 1327 more

By Lubbock, John, Sir, 1834-1913 . Genre Psychology, Comparative / Insects / Senses and sensation . Names musca / insects / eye / animals / lens and 2459 more

By Huxley, Thomas Henry, 1825-1895 . Genre Biology / Geology / Biology / Geology . Names sea / animals / plants / life / animal and 1881 more

By Beneden, (Pierre Joseph), M. van, 1809-1894 . Genre Parasites . Names parasites / animal / life / animals / taenia and 3213 more

By Darwin, Charles, 1809-1882 . Genre Evolution / Natural selection / Heredity / Human beings / Origin . Names animals / life / animal / adult / insects and 5871 more

By Chapman, Frank M. (Frank Michler), 1864-1945 . Genre Birds / North America . Names america / eye / spotted / island / grasses and 4347 more

By Huxley, Thomas Henry, 1825-1895 . Genre Invertebrates . Names animals / thorax / animal / adult / called and 5924 more