Refine by:
-
▾ Subject
- Transit of Venus (191)
- scientific instruments (185)
- observatories (112)
- Journal (42)
- Transit of Venus 1874 (23)
- Work journal (23)
- photography (9)
- telescopes (9)
- trains (7)
- Expeditions (2)
- equipment (1)
- provisioning (1)
-
▾ Date
- 1800s C.E. (225)