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Subjects and Genres: '; ...Natural Law--18th century Local sources...
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Subjects and Genres: '; ...Natural Science--Philadelphia--19th century Local sources...
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3
Subjects and Genres: '; ...Natural history...
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Creator: Wilson, Alexander
Record Source: Archival Materials
Subjects and Genres: '; ...Natural History--United States--19th century Local sources...
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5
Record Source: Archival Materials
Subjects and Genres: '; ...Naturalization records--Ohio--Mahoning County....
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6
Subjects and Genres: '; ...Natural Disasters--Floods--Wyoming Valley (PA)--20th century Local sources...
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Creator: Mather, Henry L.
Record Source: Archival Materials
Subjects and Genres: '; ...Certificate of naturalization Local sources...
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8
Subjects and Genres: '; ...Natural history--North America Local sources...
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Manuscript
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Subjects and Genres: '; ...Natural history--North America--18th century Local sources...
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Creator: Besson family
Record Source: Archival Materials
Subjects and Genres: '; ...French Immigration and Naturalization--19th century Local sources...
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11
Subjects and Genres: '; ...Nature--Artistic Studies--19th century Local sources...
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12
Subjects and Genres: '; ...Naturalism--18th century Local sources...
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13
Subjects and Genres: '; ...Academy of Natural Sciences--Philadelphia (Pa.) Local sources...
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Manuscript
14
Creator: Bye, Mary 1913-
Record Source: Archival Materials
Subjects and Genres: '; ...Friends Committee on Unity with Nature NACO Authority File...
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Manuscript
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Subjects and Genres: '; ...Academy of Natural Sciences Accessions DB...
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