Polariscope with tourmalines etc
Polariscope with tourmalines etc, on stand, three levelling screws. The polariscope is a form of Wheatstone's Polar Clock, Hour Circle, 0 degree to 360 degrees in 1 degree vertical circle, 0 degree to 90 degrees in 1 degrees, by vernier to 5' two spirit levels fixed in base plate, Nicol eye piece with hour dial, Nicol and two circles adjusted by screw. In box, and with three legs in another box.
Details
- Category:
- Optics
- Object Number:
- 1911-238
- type:
- polariscope
- credit:
- Admiralty Hydrographic Department
