The Science History Institute is closed for Independence Day on Friday, July 4, and there will be no First Friday event.
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Museum Hours:Wednesday–Saturday, 10am–5pm

Othmer Library Tour

Friday, December 5, 2025 | 4pm-4:45pm EST
Science History Institute
315 Chestnut Street
Philadelphia PA 19106
scholars doing research in a library

Curious about the other half of the Science History Institute? Step into the Othmer Library of Chemical History!

Since its founding in 1988, the Othmer Library at the Science History Institute has been a haven for research in the history of science—but there’s more to the story. Explore the reading room on a guided tour, learn how our collection has grown, and discover why we have one of the most comprehensive rare book collections on chemistry and its alchemical roots.

No registration is necessary for this First Friday drop-in tour! Guests under 14 years of age must be accompanied by an adult.

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Drop in for a tour highlighting the central role of women in shaping chemistry and the material sciences throughout history.

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