Author
Academy of Natural Sciences of Philadelphia
30
Moore, Clarence B. 1852-1936
16
Chester County Cabinet of Natural Science (West Chester, Pa.)
8
Lewis, Henry Carvill, 1853-1888
7
Ruschenberger, W. S. W. 1807-1895
6
Darlington, William, 1782-1863
5
David Johnston Kennedy, 1816-1898
5
Rafinesque, C. S. 1783-1840
5
American Philosophical Society
3
Brinton, Daniel Garrison, 1837-1899
3
Browne, Peter A. 1782-1860
3
Ennis, Jacob
3
Foulke, William Parker
3
Historical Society of Pennsylvania
3
Lea, Isaac, 1792-1886
3
Morton, Samuel George, 1799-1851
3
Phillips, Maurice E.
3
Phillips, Venia T.
3
Academy of Natural Sciences of Philadelphia Museum
2
American Imprint Collection (Library of Congress)
2
Brendle, Thomas R. 1889-1966
2
Chapman, Henry C. 1845-1909
2
Cheyney, Edward Potts, 1861-1947
2
Delaware Academy of Natural Science
2
Des Moulins, Charles, 1797 or 1798-1875
2
Guer, Jean-Antoine, 1713-1764,
2
Hare, Robert, 1781-1858
2
Jay I. Kislak Reference Collection (Library of Congress)
2
Johnson, Walter R. 1794-1852
2
Joseph Meredith Toner Collection (Library of Congress)
2
Kriebel, Howard Wiegner
2
Maillet, Benoît de, 1656-1738
2
Meigs, James Aitken, 1829-1879
2
Nolan, Edward James, 1846-1921
2
Oliver Wolcott Pamphlet Collection (Library of Congress)
2
Peale, Charles Willson, 1741-1827
2
Peale, Charles Willson, 1741-1827,
2
Pechin, William, 1773-1849,
2
Perkiomen History and Science Society (Pa.)
2
Philadelphia Record
2
Slack, J. H.
2
University of Pennsylvania
2
Wister, Frances Anne
2
Academy of Natural Sciences of Drexel University
1
Academy of Natural Sciences of Philadelphia Mineralogical and Geological Section
1
Audubon, John James, 1785-1851
1
Barton, William P. C. 1786-1856
1
Bartram, Isaac
1
Bartram, John 1699-1777
1
Bartram, Moses 1732-1809
1
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