“Aspidoceras, Creniceras, Perisphinctes” Lantern slide used to illustrated a lecture on Historical Geography delivered by William Berryman Scott in 1894 at the Wagner Free Institute of Science. Image courtesy of the Wagner Free Institute of Science.
Saturday, October 8, 2011, 3:00 pm EDT
Philadelphia's Lazaretto
Thursday, October 6, 2011, 8:00 pm EDT
Program in the History of Science, Medicine & Technology, The Johns Hopkins University
Wednesday, October 5, 2011, 11:30 pm EDT
Wagner Free Institute of Science
Wednesday, October 5, 2011, 5:00 pm EDT
Barbara Bates Center for the Study of the History of Nursing, University of Pennsylvania
Wednesday, October 5, 2011, 10:00 am EDT
Wednesday, October 5, 2011, 9:00 am EDT
Tuesday, October 4, 2011, 5:00 pm EDT
Chemical Heritage Foundation, Brown Bag Lecture
Monday, October 3, 2011, 8:30 pm EDT
Department of History and Sociology of Science, University of Pennsylvania
Friday, September 30, 2011, 10:30 pm EDT
Philadelphia Area Center for History of Science
Friday, September 30, 2011, 6:00 pm EDT
Philadelphia Area Center for History of Science
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