By Floyd, Marcus Lawson. . Genre Tobacco . Names leaves / order / soil / fer / type and 22 more

By Bonsteel, Jay Allan. . Genre Soils / United States . Names soil / type / areas / area / grass and 103 more

By Bonsteel, Jay Allan. . Genre Soils / United States . Names soil / type / areas / area / plants and 46 more

By Bonsteel, Jay Allan. . Genre Soils / United States . Names soil / areas / type / virginia / area and 61 more

By Bonsteel, Jay Allan. . Genre Soils / United States . Names soil / type / areas / wheat / grass and 95 more

By Bonsteel, Jay Allan. . Genre Soils / United States . Names soil / type / areas / area / organic matter and 129 more

Genre n-us-or / Forests and forestry / Oregon / Public lands / Oregon . Names oregon / area / order / white pine / areas and 327 more

By Hitchcock, A. S. (Albert Spear), 1865-1935 . Genre nwcu--- / Grasses / Cuba / Catalogs / Forage plants and 3 more . Names type / sp / panicum / grasses / santiago and 7147 more

By Hitchcock, A. S. (Albert Spear), 1865-1935 / Standley, Paul Carpenter, 1884- . Genre Botany / District of Columbia . Names leaves / flowers / plants / fruit / columbia and 27323 more

By Hinds, Warren Elmer, 1876- [from old catalog] . Genre Cotton leafworm . Names plants / ala / leaves / paris / animals and 107 more