Refine by:
-
▾ Collection
- National Maritime Museum Manuscripts (3)
- Papers of George Biddell Airy (1)
- Papers of the Board of Longitude (4)
- Royal Greenwich Observatory Archives (8)
-
▾ Subject
- Longitude (5)
- Marine navigation (4)
- Horology (3)
- Geographical exploration (1)
- Legislation (1)
- Magnetism (1)