Othmer Library of Chemical History
Chemical Heritage Foundation
315 Chestnut Street
Philadelphia, PA 19106
Monday - Friday
10:00 a.m. - 4:00 p.m.
The Library is closed on these holidays every year:
Additionally, the Library is occasionally closed for events, including these:
Planning a research visit
The Othmer Library is an independent research library. It is open to all users, by appointment, but the collections and services are designed for scholars and experienced researchers who are working on specific topics, with a research strategy in place.
Researchers are encouraged to consult the online catalog and request materials in advance of their visit. The library's online catalog, Midon, provides full bibliographic descriptions of books, journals, oral histories, and archival materials held in the collection. The requested items will be retrieved from the stacks to be used in the Jacobs Reading Room.
Violation of any established conditions and/or procedures for using materials from the collections are subject to penalties, including denial of further access to the collections. Repeated violations may result in denial of further access to the premises and denial of further use of the Library’s facility. Mutilation or theft of property will result in criminal prosecution, as set forth in 18 Pa.C.S. § 3929.1.
Records related to the circulation of library materials that contain the names or other personally identifying details regarding the users of the State Library or any local library that is established or maintained under any law of the Commonwealth or the library of any university, college, or educational institution chartered by the Commonwealth or the library of any public school or branch reading room, deposit station or agency operated in connection therewith, shall be confidential and shall not be made available to anyone except by a court order in a criminal proceeding as set forth in 24 Pa.C.S. § 4428.