Selection of six Nicol prisms (cemented composite crystal of Iceland spar - calcite), unsigned, supplied by James Swift and Son Limited, London, England, 1900-1936. Six Nicol prism polarisers 1900-1936
differential ratio polariscope by Negretti and Zambra, London, type devised by J. J. Field in 1869. fitted with a large Nicol prism 1 1/4"x2 1/2", with analysing prism and descriptive pamphlet Differential ratio polariscope by Negretti and Zambra, with rotating prism
Set of 12 Nicol prisms in case by E. Lutz, Paris, c. 1876. Set of 12 Nicol prisms in case by E. Lutz 1870-1876
1 P & L goniometer eyepiece, 1 P & L Filar micrometer eyepiece, 1 P & L coverglass micrometer, 1 P & L substage condenser, 1 P & L Nicol prism, 1 Zeiss Browning eyepiece spectroscope, 1 set Leitz objective changers Microscope accessories by Zeiss, Powell & Lealand, and Leitz
Monocular "jug-handle" microscope with, mechanical stage and fine focusing, with various accessories, including 4 objectives, 3 objective changers, 4 eyepieces, micrometer and goniometer eyepieces, analyser and polariser, 2 nicol prisms, constant temperature bath, once owned by W.M. Bayliss, by Zeiss, German, 1900-1910 Monocular "jug-handle" microscope with 1900-1910