By Hazard, Willis P. (Willis Pope), 1825-1913 . Genre Butter . Names sweet / extra / animal / horse / animals and 88 more

By Huidekoper, Rush Shippen, 1854-1901 . Genre Domestic animals / Age / Teeth . Names age / animals / animal / horse / intermediate and 2269 more

By Horner, William E. (William Edmonds), 1793-1853 . Genre Pathology / Pathology / Case Reports / Physiology / Pathology .

By Rothrock, Joseph T., 1839-1922 . Genre Forests and forestry / Pennsylvania / Reforestation / Waste lands / Pennsylvania . Names soil / leaves / china / white pine / area and 213 more

By Hawk, Philip B. (Philip Bovier), b. 1874 . Genre Biochemistry . Names called / beaker / sulphur / ammonia / bacteria and 1102 more

By Tryon, George Washington, 1838-1888 . Genre Mollusks . Names pupa / pupilla / type / apex / mus and 5554 more

By Dawson, John William, Sir, 1820-1899 / Crozer, Samuel A. . Genre Religion and science / Evolution . Names animals / life / animal / age / idea and 626 more

By Stiles, Percy Goldthwait, 1875-1936 . Genre Nervous system . Names life / called / animals / type / animal and 694 more

Genre Gardening / Periodicals / Gardening / United States / Periodicals and 5 more .

Genre Aquarium fishes / Periodicals / Aquariums / Periodicals . Names fish / plants / life / american / animals and 355 more