Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 358
ther at F. Such compound lenses are saidto be achromatic. They are usedin the construction of all tele-scopes and microscopes. In themodern microscope objective,however, the simple combination of two lenses does not suffice togive an image perfectly free from all defects, and many othercombinations… … Fio. 412.—A section of an apochromaticmicroscope objective made by Zeiss. 348 DISPERSION, COLOUR, SPECTRUM ANALYSIS /// ^— ^^i^^^^.J^^ -^ n ^^■^•i^-^fi? ^5^^:voS^5^i5^ ^ r s/y/w v f ^ e^e J hi 399. The Rainbow. In the rainbow we have a solar spectrumon a grand scale. It is produced through the…
Physics
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