The first illustration of chemical atoms and their combination
View the hidden treasures buried in the Othmer Library’s collections. From the intriguing to the quirky, Othmeralia showcases items unearthed daily by our library’s staff. Learn more »
Listen to the latest episodes of CHF’s award-winning podcast.
Help us preserve and share the history of chemistry and related sciences. Make a tax-deductible tax-deductible gift online.
Rotarule slide rule
©2010–2015 Chemical Heritage Foundation