- Keyword: Hecla
About 39 results ()
Refine by:
-
▸ Subject
- Marine navigation (20)
- Astronomical observatories (12)
- Legislation (11)
- Time Measuring Instruments (11)
- Astronomy (7)
- ASTRONOMY (6)
- Longitude (6)
- Geographical exploration (5)
- Meteorology (5)
- Navigational aids (4)
- Astronomical Observatories (1)
- NATURAL SCIENCES (1)
- Natural history (1)
- Nautical instruments (1)
- Temperature (1)
-
▸ Page has transcription
-
▸ Place
-
▸ Languages
- English (12)
-
▸ Date
- 1600s C.E. (1)
- 1700s C.E. (5)
- 1800s C.E. (39)