"Construction of the Pennsylvania Ave. Subway, Philadelphia" Lantern slide used to illustrate an Engineering course on Railroads delivered by Samuel Tobias Wagner from 1895-1909 at the Wagner Free Institute of Science.
Thursday, December 11, 2014, 9:00 am EST
Wednesday, December 10, 2014, 5:00 pm EST
Tuesday, December 9, 2014, 5:00 pm EST
Chemical Heritage Foundation, Brown Bag Lecture Series
Friday, December 5, 2014, 3:15 pm EST
Princeton University, Davis Center
Thursday, December 4, 2014, 11:00 pm EST
Philadelphia Area Seminar on History of Mathematics
Thursday, December 4, 2014, 9:30 pm EST
Princeton University, History of Science Colloquium
Wednesday, December 3, 2014, 10:00 pm EST
Chemical Heritage Foundation
Wednesday, December 3, 2014, 5:30 pm EST
Tuesday, December 2, 2014, 4:47 pm EST
Rutgers Center for Historical Analysis, Seminar
Tuesday, December 2, 2014, 4:00 pm EST
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