The Donald F. and Mildred Topp Othmer Library of Chemical History

315 Chestnut Street Philadelphia, Pennsylvania 19106-2702 Tel: 215-873-8205 Fax: 215-629-5205 reference@chemheritage.org	Library Hours Monday–Friday, 10:00 a.m.–4:00 p.m. Electronic Access The Library’s online public access catalog (OPAC) is available at http://othmerlib.chemheritage.org
Researchers are encouraged to contact staff to make an appointment in advance of a visit. All researchers must provide a photo ID upon arrival.

	Library Holdings The Othmer Library of Chemical History’s print collection contains more than 100,000 volumes of primary resources for the history of the chemical and molecular sciences, technologies, and industries. Learn more about our holdings
	Library Use & Services The collection of the Othmer Library is open to all users. The Library offers reference services, interlibrary loan, and document delivery services. Services, hours, and contact information
	New: Featured Books A new series of interactive presentations that provide an up-close view of some of our most interesting books. Explore the featured books
	The Roy G. Neville Historical Chemical Library The Neville collection dates from 15th century to 20th century and includes many of the most important works in the history of science and technology. Learn about the collection
	Recent Acquisitions The Library's collection is always expanding. Discover our most recent acquisitions (opens new window)
	The Bolton Society An organization of chemical bibliophiles, the Bolton Society encourages collection of printed material devoted to the chemical and molecular sciences, and supports the Library as a primary repository for such material. Join the Society

Library staff

Book Donations

Brown Bag Lectures
CHF's series of informal talks, open to the public

Fellowships & Grants
The Beckman Center, an arm of the Othmer Library, is devoted to fostering a community of visiting scholars.

Neville Prize Cultural history of Mendeleev takes 2007 Neville Prize in Bibliography or Biography.