Refine by:
-
▾ Collection
- National Maritime Museum Manuscripts (15)
- Papers of the Board of Longitude (36)
- Royal Greenwich Observatory Archives (51)
-
▾ Subject
- Longitude (36)
- Time Measuring Instruments (25)
- Horology (23)
- Marine navigation (23)
- ASTRONOMY (22)
- MATHEMATICS (15)
- MEDICAL SCIENCES (15)
- Medicine (15)
- Geographical exploration (4)
- Nautical instruments (4)
- Latitude (2)
- Magnetism (2)
- Tides (2)
- Winds (2)
- Jupiter (Planet) (1)
- Navigational aids (1)