Contact

Philadelphia Area Center
for History of Science

431 Chestnut Street
Philadelphia, PA 19106

Babak Ashrafi, Ph.D., Executive Director
Phone:  267.386.3487
Email: 

Bonnie T. Clause, Executive Assistant
Phone: 267.386.3489
Email: 

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Lithograph of California Powder Works, Santa Cruz Co., California. Image courtesy of the Hagley Museum and Library.

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