Celebrating our 50-, 60- and 70-Year Members
Thursday, June 11, 2026
Science History Institute
315 Chestnut St.
Philadelphia, PA 19108
12 – 3 PM
A D V A N C E N O T I C E
September- YCC Poster Session
TBD
See details in the September issue of
the Catalyst and at PhillyACS.org.