Refine by:
-
▾ Subject
- ASTRONOMY (129)
- Marine navigation (129)
- Nautical instruments (113)
- Astronomical Observatories (90)
- Colonial administration (88)
- Longitude (45)
- Geographical exploration (35)
- Navigational aids (29)
- Horology (17)
- Legislation (17)
- TRAVEL (12)
- Aids to navigation (6)
- Discoveries in geography (6)
- Maps (6)
- Navigation (6)
- Navigation (science) (3)
- Time Measuring Instruments (3)
- Geodesy (1)
- Magnetism (1)
- SCIENCE (1)
-
▾ Date
- 1700s C.E. (36)
- 1800s C.E. (119)