About 26 results ()
Refine by:
-
▾ Collection
- Darwin Manuscripts (15)
- Darwin-Hooker Letters (8)
- National Maritime Museum Manuscripts (1)
- Papers of John Pond (2)
- Royal Greenwich Observatory Archives (3)
-
▾ Subject
- Marine navigation (3)
- Longitude (2)
- Time Measuring Instruments (2)
- ASTRONOMY (1)
- MATHEMATICS (1)
- MEDICAL SCIENCES (1)
- Medicine (1)
-
▾ Date
- 1700s C.E. (1)
- 1800s C.E. (11)