- Keyword: Hecla
About 29 results ()
Refine by:
-
▸ Subject
- Marine navigation (20)
- Time Measuring Instruments (11)
- Astronomy (7)
- ASTRONOMY (6)
- Longitude (6)
- Geographical exploration (5)
- Meteorology (5)
- Navigational aids (4)
- Astronomical observatories (2)
- Astronomical Observatories (1)
- Legislation (1)
- NATURAL SCIENCES (1)
- Natural history (1)
- Nautical instruments (1)
- Temperature (1)
-
▸ Page has translation
- No (29)
-
▸ Place
-
▸ Languages
- English (2)