Refine by:
-
▾ Collection
- National Maritime Museum Manuscripts (8)
- Papers of John Pond (8)
- Papers of the Board of Longitude (5)
- Royal Greenwich Observatory Archives (21)
-
▾ Subject
- Marine navigation (14)
- Time Measuring Instruments (10)
- ASTRONOMY (6)
- Longitude (5)
- Geographical exploration (3)
- Horology (2)
- Meteorology (2)
- Discoveries in geography (1)
- Legislation (1)
- NATURAL SCIENCES (1)
- Natural history (1)
- Navigation (1)
- Navigational aids (1)
- Temperature (1)