About 17 results ()
Refine by:
-
▾ Collection
- Darwin Manuscripts (13)
- National Maritime Museum Manuscripts (3)
- Papers of the Board of Longitude (1)
- Royal Greenwich Observatory Archives (4)
-
▾ Subject
- Longitude (4)
- Marine navigation (4)
- Horology (3)
- Geographical exploration (1)
- Magnetism (1)
-
▾ Date
- 1800s C.E. (4)