Ernst Leitz (Firm) · Wetzlar ; New York : Ernst Leitz · leaf 52
No. 73a. … Miero-Speetroseope. The Micro-Spectroscope fits into the tube of the micro-scope like any ordinary eye-piece and may be fixedin. any desired position by means of the thumb-screwM. The position of the bright and dark lines of thespectrum and their respective wave lengths are ascert-ained by means of…
Microscopy · Optometry · Equipment and supplies
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