Refine by:
-
▾ Collection
- National Maritime Museum Manuscripts (3)
- Papers of the Board of Longitude (3)
- Royal Greenwich Observatory Archives (6)
-
▾ Subject
- ASTRONOMY (5)
- Marine navigation (5)
- Geographical exploration (4)
- Longitude (4)
- Aids to navigation (1)
- Discoveries in geography (1)
- Horology (1)
- MATHEMATICS (1)
- MEDICAL SCIENCES (1)
- Maps (1)
- Medicine (1)
- Nautical instruments (1)
- Navigation (1)
- Navigational aids (1)
- PUBLISHING (1)
- TRAVEL (1)