Ernst Leitz (Firm) · Wetzlar ; New York : Ernst Leitz · leaf 18
ining to be ac-complished by means of the micro-meter screw. An illuminating apparatus maybe added to a microscope at anytime. For a description of the variousforms of these condensers see page 34.The instruments specified in the follo-wing pages are provided with carefully corrected achromatic… … The micrometer-screw. ERNST LEITZ, Optical Works, WETZLAR. — 14
Microscopy · Optometry · Equipment and supplies
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