Columbia subject headings:
American Philosophical Society--Catalogs.
Manuscripts, American--Pennsylvania--Philadelphia--Catalogs.
Harvard subject headings:
American Philosophical Society--Catalogs.
Manuscripts, American--Pennsylvania--Philadelphia--Catalogs.
Manuscripts--Catalogs
Manuscripts--United States.
Princeton subject headings:
American Philosophical Society--Catalogs.
Manuscripts, American--Pennsylvania--Philadelphia--Catalogs.