By Chapman, Frank M. (Frank Michler), 1864-1945 . Genre Birds / United States / Photography of birds . Names camera / rock / island / lens / sea and 858 more

By Allen, Grant, 1848-1899 . Genre Natural history .

By Hall, Winfield Scott. . Genre Physiology / Laboratory manuals / Physiology / Laboratory manuals . Names eye / animal / thorax / simple / lea and 901 more

By Weed, Alfred Cleveland, 1881- . Genre Pike / Pickerels / Walleye (Fish) .

By Field, Michael E. . Genre Continental shelf / Delmarva Peninsula / Geomorphology / Delmarva Peninsula . Names data / sea / delaware / island / area and 686 more

By Osborn, Herbert, 1856-1954 . Genre Insects / Beneficial insects / Insect pests . Names insects / order / adult / life / pupa and 2737 more

By Cope, E. D. (Edward Drinker), 1840-1897 . Genre s------ / Fishes / South America / Characidae / Siluridae . Names fin / sp / spigelia nov. / op / eye and 614 more

By Flower, William Henry, 1831-1899 / Lydekker, Richard, 1849-1915 . Genre Mammals . Names animal / animals / type / called / america and 9130 more

By Winn, Wren. . Genre Timber / Wood . Names wood / sapwood / bark / india / america and 3124 more

Genre Natural history / Zoology / Botany / Geology .