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.


Please note that this tour begins at 4:15pm. No registration is necessary for this First Friday drop-in tour, but space is limited! Guests under 14 years of age must be accompanied by an adult.

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Join us in our museum EVERY SATURDAY for a family-friendly program that highlights strange and surprising stories from the history of science!

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Philly Fair 250

Join us at Philly Fair 250, a multiday extravaganza celebrating America’s 250th birthday!

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