Refine by:
-
▾ Subject
- ASTRONOMY (10)
- Marine navigation (9)
- Transit of Venus (7)
- Nautical instruments (6)
- astronomical instruments (6)
- observatories (6)
- photography (6)
- Longitude (5)
- Astronomical Observatories (3)
- Colonial administration (3)
- Geographical exploration (3)
- MATHEMATICS (3)
- MEDICAL SCIENCES (3)
- Medicine (3)
- Navigational aids (3)
- TRAVEL (2)
- Aids to navigation (1)
- Discoveries in geography (1)
- Horology (1)
- Maps (1)
- Navigation (1)
- SCIENCE (1)
-
▾ Date
- 1700s C.E. (7)
- 1800s C.E. (14)