Refine by:
-
▾ Subject
- ASTRONOMY (238)
- Marine navigation (226)
- Longitude (200)
- Transit of Venus (102)
- Geographical exploration (98)
- Time Measuring Instruments (87)
- Nautical instruments (81)
- Navigational aids (73)
- scientific instruments (59)
- Horology (48)
- TRAVEL (43)
- Transit of Venus 1874 (41)
- Work journal (41)
- MATHEMATICS (38)
- MEDICAL SCIENCES (38)
- Medicine (38)
- observatories (35)
- Discoveries in geography (19)
- Navigation (19)
- Magnetism (17)
- Aids to navigation (16)
- Maps (16)
- Navigation (science) (12)
- equipment (12)
- provisioning (12)
- Journal (10)
- ANTHROPOLOGY (8)
- Astronomical Observatories (8)
- Legislation (8)
- Colonial administration (7)
-
▾ Date
- 1600s C.E. (1)
- 1700s C.E. (260)
- 1800s C.E. (320)
- 1900s C.E. (4)