Refine by:
-
▾ Subject
- ASTRONOMY (6)
- Marine navigation (6)
- MATHEMATICS (3)
- MEDICAL SCIENCES (3)
- Medicine (3)
- Time Measuring Instruments (3)
- NATURAL SCIENCES (2)
- Natural history (2)
- MUSIC (1)
- Temperature (1)
-
▾ Date
- 1700s C.E. (11)
- 1800s C.E. (6)