Tuesday, November 15, 2011, 5:00 pm EST
Chemical Heritage Foundation, Brown Bag Lecture
Monday, November 14, 2011, 8:30 pm EST
Philosophy and History and Sociology of Science Departments, University of Pennsylvania
Saturday, November 12, 2011, 2:30 pm EST
Department of Philosophy, University of Pennsylvania
Thursday, November 10, 2011, 8:00 pm EST
Program in the History of Science, Medicine & Technology, The Johns Hopkins University
Wednesday, November 9, 2011, 11:30 pm EST
The College of Physicians of Philadelphia Section on Medical History
Wednesday, November 9, 2011, 10:00 am EST
Wednesday, November 9, 2011, 9:00 am EST
Tuesday, November 8, 2011, 5:00 pm EST
Chemical Heritage Foundation, Brown Bag Lecture
Wednesday, November 2, 2011, 5:00 pm EDT
Barbara Bates Center for the Study of the History of Nursing, University of Pennsylvania
Tuesday, November 1, 2011, 5:00 pm EDT
Chemical Heritage Foundation, Brown Bag Lecture
Philadelphia Central High School for Boys and Pennsylvania State Arsenal, 1839. This daguerreotype, created by Joseph Saxton, is the oldest known photograph taken in the United States. Image courtesy of the Historical Society of Pennsylvania.
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