Refine by:
-
▾ Subject
- ASTRONOMY (19)
- Transit of Venus (18)
- equipment (17)
- provisioning (17)
- scientific instruments (17)
- Longitude (10)
- Navigational aids (10)
- Marine navigation (8)
- MATHEMATICS (6)
- MEDICAL SCIENCES (6)
- Medicine (6)
- Surveying (4)
- Nautical instruments (2)
- Navigation (2)
- Time Measuring Instruments (2)
- Astronomical Observatories (1)
- Colonial administration (1)
- Expeditions (1)
- Magnetism (1)
- PUBLISHING (1)
- Transit of Venus 1874 (1)
- Work journal (1)
- astronomical instruments (1)
- observatories (1)
- photography (1)
-
▾ Date
- 1700s C.E. (17)
- 1800s C.E. (36)