Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 300
Fig. 223. -Swifts illuminating and polarising*apparatus. ACCESSORY APPARATUS monochromatic light. The Messrs. Zeiss have constructed anapparatus (after Hartnack) for obtaining monochromatic light ma true form, which is illustrated in fig. 224. By means of two prisms, P1, P2, of strong dispersive…
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