The James Melville Gilliss Library
The James Melville Gilliss Library located on the grounds of the United States Naval Observatory is one of the preeminent scientific libraries in the United States.
May rare book display:
This month we have Transit of Venus books from the transits of 1629, 1769 and 1882 in our book case. Get ready for next month's Transit of Venus on Tuesday, June 5th. You won't have another chance to see it until December 10, 2117.
Cake day is Wednesday May 9th.
Got a question regarding the USNO Library collection? Ask the USNO Librarian!
URANIA - The USNO Online Catalog
Search the holdings of the James M. Gilliss library via our online catalog - URANIA.
Quick Link to Astrophysical Data System (ADS)
Search the SAO/NASA Astrophysical Data System (ADS)
Library Collections
Recently Cataloged Books, Electronic Journals, and Publications of the USNO and its staff
Historical Photos, Artwork, and Objects
A sampling of the historical photos, artwork and objects contained within the library.
Library History
Learn more about the history of the library
Additional Resources
Links to additional online resources
