Polarising microscope condenser lens assembly and polarising eyepiece with circular scale Microscopy (Wellcome)
Pair of nicol prisms fitted on single bone-handled mount one of the prisms being rotatable Science Teaching 1875-1924
Patent projective microscope by Newton & Co., London, c.1887. Fitted with 5-inch condenser, front lens with rack work, polarising prism and arm, convergent systems, iron lined body made for electric or limelight rotating-divided stage and analyser, also substage condensers nos. 2 & 5, in wooden case. The accessories comprises 4 objectives 1/4 undulation and Klein's quartz plates, adjustable slit, 4 diaphragms, additional condensers, adapting tubes etc. Patent projective microscope by Newton & Co. Microscopes 1885-1890
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 Optics 1900-1936
Set of 12 Nicol prisms in case by E. Lutz, Paris, c. 1876. Set of 12 Nicol prisms in case by E. Lutz Optics 1870-1876
