Schedule a Library Visit

Othmer Library
315 Chestnut Street
Philadelphia, PA 19106
reference@sciencehistory.org
215.629.5146

The Othmer Library is open to researchers by appointment only. Appointments are available Monday through Friday from 10am to 4pm (except major holidays) and must be made and confirmed 24 hours in advance.

Your appointment request form should include any accommodation requirements and a list of all materials you plan to view, especially rare books and archival collections, as these can take more time to retrieve. Our librarians will bring your requested items to you in our reading room when you arrive.

To view museum objects, request an appointment here. For guided library tours, see our events calendar.