From the Malacology collection, one of the largest in the world.
Thursday, April 30, 2009, 1:07 am EDT
Barbara Bates Center for the Study of the History of Nursing, University of Pennsylvania
Wednesday, April 29, 2009, 2:00 am EDT
Chemical Heritage Foundation
Saturday, April 25, 2009, 10:01 pm EDT
Hagley Museum and Library
Thursday, April 23, 2009, 2:00 am EDT
Barbara Bates Center for the Study of the History of Nursing, University of Pennsylvania
Thursday, April 23, 2009, 1:00 am EDT
Barbara Bates Center for the Study of the History of Nursing, University of Pennsylvania
Wednesday, April 22, 2009, 4:00 am EDT
Pennsylvania Hospital Historic Collections
Wednesday, April 22, 2009, 1:00 am EDT
Chemical Heritage Foundation and Philadelphia Area Center for History of Science
Tuesday, April 21, 2009, 1:00 am EDT
Department of History and Sociology of Science, University of Pennsylvania
Friday, April 17, 2009, 9:00 pm EDT
Philadelphia Area Center for History of Science
Friday, April 17, 2009, 6:33 pm EDT
The Academy of Natural Sciences, Ewell Sale Stewart Library
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