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workroomPrevention of vibration
Objectives and Eyepieces 4782
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Abbe Abbe condenser achromatic acid adjustment advantage alcohol aperture aplanatic apochromats apparatus arc lamp Autochrome back lens bacteria blue bromide bull's-eye camera extension centring screws colour screens cone contrast convex lens correct cover-glass dark ground illumination denser detail diameter diatom disc Double convex lens exposure eyepiece film filter fitted focal length focussing front lens give given green ground glass Haematoxylin high-power horizontal immersion iris diaphragm lamp lantern Leitz lenses Liliput Liliput 4 amp low-power magnification makers method micrography microscope monochromatic mounted necessary negative Nernst lamp numerical aperture objective oblique obtained Ocular oil-immersion optical bench ordinary panchromatic panchromatic plates photograph photomicrography picric acid placed position Potassium bromide projected radiant rays shown at Fig solution stage stained stand substage condenser suitable surface tion vertical camera W. B. R. To follow washed Watson's Universal Wratten's yellow Zeiss