Refine by:
-
▾ Subject
- Marine navigation (39)
- ASTRONOMY (25)
- Longitude (14)
- MATHEMATICS (13)
- MEDICAL SCIENCES (13)
- Medicine (13)
- Horology (10)
- Geographical exploration (6)
- Time Measuring Instruments (3)
- Meteorology (2)
- NATURAL SCIENCES (2)
- Natural history (2)
- Commerce (1)
- Magnetism (1)
- Navigational aids (1)
- TRADE (1)
- Temperature (1)
-
▾ Date
- 1700s C.E. (43)
- 1800s C.E. (18)