Toy polariscope
1828-1830
Norrenberg polariscope with Wheatstone's improvements
1876
Norrenberg Polariscope especially adapted for crystallographic work
Norrenberg Polariscope by Soleil
Rutley's polariscope, no polarizing nicol prism
Brass demonstration polariscope with biaxial crystal
1830-1880
Large projection polariscope in three mahogany cabinets
1875-1880
Plate cut from tourmaline uniaxial crystal
Plate cut from barytes biaxial crystal
Plate cut from 1mm calcite uniaxial crystal
Airy polariscope modified by Brady
Plate cut from anhydrite biaxial crystal
Wollaston's polariscope No. 948
1850-1899 (estimated)
Small polariscope, by C.D. Ahrens
Polariscope, wood and glass
1850-1924
Plate cut from hemitrope calcite uniaxial crystal
Plate cut from apophyllite uniaxial crystal
Glass plate used as polariser, in case
1850-1924
Lantern polariscope
Polariscope
1840-1850
Arago polariscope for measuring intensity of polarized light
polariscope
1833-1867
Ladd's Polariscope, with lens and quarter undulations plate, 1870
1870
Elbow projection polariscope
1890-1900
Plate cut from dioptase uniaxial crystal
Plate cut from 0.5mm calcite uniaxial crystal
Plate cut from 3mm calcite uniaxial crystal
Lantern Polariscope
1870-1880
Groth's universal apparatus - vertical polariscope
Rotating prism in brass box for differential ratio polariscope
Demonstration polariscope with six mineral crystals in rotating mount.
1830-1880
Hand polariscope
1845-1855
Plate cut from axinite biaxial crystal
Plate cut from corundum uniaxial crystal
Plate cut from beryl uniaxial crystal
Polariscope
1850-1924
Polariscope (c.1840-50)
1840-1850
Plate cut from zircon uniaxial crystal
Plate cut from brucite uniaxial crystal
Newton & Co. Polariscope
1865-1875
Polariscope (c.1850)
1850
Polariscope (c.1840-50)
1840-1850
Polariscope by Reichert no.2472
Plate cut from adularia biaxial crystal
Plate cut from left-handed quartz uniaxial crystal
Plate cut from apatite uniaxial crystal
Plate cut from meionite uniaxial crystal
Plate cut from aragonite biaxial crystal
Plate cut from 8mm quartz uniaxial crystal
