The microscope : its construction and management : including technique, photo-micrography, and the past and future of the microscope (1893)
Heurck, Henri van, 1838-1909 · London : C. Lockwood ; New York : D. Van Nostrand Co. · leaf 386
f a mean wavelength of X = 0*55/*, the same advantage would be gained as ifthe apertures of our present objectives were increased from 1-40 to 220 ! Accept, dear Sir, my best wishes, Dr. S. CZAPSKI. ADDENDA. i. Messrs. Bausch and Lombs Fine Adjustment We have already described this fine adjustment… … Fig. 228.aa represent two strong blades of finely-tempered steel, set parallelto each other, and securely fastened at one end to the back of thecase d, and at the other to the arm e, which carries the rack andpinion; b represents the micrometer screw, which is fitted to theupper part of the upright…
Microscopy
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