Philadelphia Museum of Art Presbyterian Historical Society Athenaeum / Haverford College Swarthmore College / Free Library of Philadelphia Villanova University Independence Seaport Museum Summer / Temple University University of Pennsylvania College of Physicians / University of Delaware Academy / Wagner Free Institute of Science Chemical Heritage Foundation Bryn Mawr College Winter/early Spring / Library Pennsylvania Horticultural Society Late Spring/Summer / American Philosophical Society Library Company Rosenbach Museum / /
NaturalFeature
Natural Sciences Fall / /
Organization
University of Pennsylvania College of Physicians of Philadelphia Winter / Historical Society of Pennsylvania / University of Delaware Academy of Natural Sciences Fall / Union League of Philadelphia / Villanova University / Haverford College Swarthmore College / Wagner Free Institute of Science Chemical Heritage Foundation Bryn Mawr College Winter/early Spring / /