Genre n-us-pa / Philadelphia (Pa.) / Learned institutions and societies / Science / Periodicals . Names la / american / life / called / order and 6753 more

By Hewitt, Sarah Cooper / Dwight, Jonathan, 1858-1929 / Tucker, Marcia Brady / Richmond, Charles Wallace, 1868-1932 . Genre n-us--- / Zoology / Periodicals / Animals / Periodicals and 5 more . Names animal / american / animals / horse / called and 5202 more

Genre Entomology / Periodicals . Names thorax / apex / basal / american / sp and 14552 more

Genre Forests and forestry / Pennsylvania / Periodicals / Forests and forestry / Societies, etc and 4 more . Names leaves / wood / soil / area / life and 2212 more

By Poupard, James / Adams, John, 1735-1826 . Genre Science / Periodicals / Learned institutions and societies / United States / Learned institutions and societies and 2 more . Names america / eye / la / order / called and 1266 more

Genre Insects / Periodicals . Names insects / thorax / american / sp / coleoptera and 10210 more

Genre Insects / Periodicals . Names thorax / sp / insects / apex / basal and 14014 more

By Brooks, William Keith, 1848-1908 . Genre Zoology / Periodicals . Names fish / animal / animals / producers / life and 2786 more

Genre n-us-pa / Philadelphia (Pa.) / Learned institutions and societies / Science / Periodicals . Names american / rock / called / life / area and 3634 more

Genre Forests and forestry / Pennsylvania / Periodicals / Forests and forestry / Societies, etc and 4 more . Names leaves / area / areas / soil / life and 737 more