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The Modern M1croscope
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accessories achromatic objectives analyzer angle apochromatic back lens Bausch & Lomb Bertrand lens binocular body binocular microscope block camera cedar oil celloidin Chapter color compensating compound microscope corrected Courtesy Spencer Lens cover glass croscope cross hair crystals dark field condenser denser diameter disc edge equipped eyepiece F1gure fluorite focus focusing holder huyghenian immersion lens inch instrument iris diaphragm knife Leitz lenses light rays light source magnification manufacturers material mechanical stage metallurgical microscopes method micro micrometer microscope lamp microtome mirror monocular mounted necessary nosepiece numerical aperture observation ocular oil immersion lens oil immersion objective optical system paraffin photomicrographs placed plate polarized light polarizing microscope position possible prism proper properly quartz rack and pinion refractive index rotated scope screws sections seen slide specimen stage micrometer stereoscopic microscopes strop substage surface thickness tilt tion tissue tive top lens tube length usually vernier vertical illuminator Zeiss