Provenance
Received from John B. Roberts and accessioned, 1913 (49784).
General physical description
1 volume, 30 p.
Early American History Note
Joseph Roberts was a teacher at Friends Academy. This volume contains various astronomical calculations done by him and his students for 1820-1821.
American Philosophical Society 105 South Fifth Street Philadelphia, PA, 19106 215-440-3400 manuscripts@amphilsoc.org