By Eaton, Walter Prichard, 1878-1957 . Genre Natural history / Outdoor books . Names flowers / life / sea / grass / rock and 1062 more

By Burnham, Geo. P. (George Pickering), 1814-1902 . Genre Poultry . Names american / animal / called / class / none and 223 more

By Shull, George Harrison, 1874-1954 . Names bursa / duplicate / type / plants / included and 433 more

By Beal, F. E. L. (Foster Ellenborough Lascelles), 1840-1916 . Genre Birds . Names insects / unidentified / fruit / seeds / animal and 6827 more

By Chambers, Victor Toucey, 1831-1883 . Genre Tineidae / Tineina / Moths / United States . Names thorax / leaves / apex / sp / gelechia and 7945 more

By Huxley, Thomas Henry, 1825-1895 . Genre Biology / Geology . Names sea / animals / plants / life / animal and 3749 more

Genre n-us-mt / Forest reserves / Montana / Lincoln County / Logging and 22 more . Names area / soil / areas / flower / type and 851 more

By Berry, S. Stillman (Samuel Stillman), 1887-1984 . Genre Pulmonata / Mollusks / Canada . Names alberta / umbilicus / nautilus / pyramidula / helix and 354 more

By Lea, Thomas G. (Thomas Gibson), 1785-1844 . Genre Botany / Ohio / Cincinnati . Names order / sp / wood / nansenia sp / navicula sp and 4170 more

By Roosevelt, Theodore, 1858-1919 / Grinnell, George Bird, 1849-1938 . Genre Hunting / United States . Names american / animals / horse / animal / life and 846 more