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Subjects
- Natural History[remove]38
- Physicians5
- Research Personnel3
- Societies, Scientific -- organization & administration3
- Academy of Natural Sciences of Philadelphia.2
- Agassiz, Louis, 1807-1873.2
- Boston2
- Constitution and Bylaws2
- Manuscripts as Topic2
- Massachusetts2
- New York2
- Newport Natural History Society.2
- Philadelphia2
- Rhode Island2
- Academies and Institutes1
- Agriculture1
- Animal Shells1
- Anniversaries and Special Events1
- Appalachian Region1
- Art1