Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 219
Fig. 246. The rays, after refraction by the lens, cross beyond it and form aninverted magnified image at ab. This is then further magnifiedby the eye piece N, so forming the virtual image at ab. The lenses of the microscope should be achromatic.Besides, for convenience, both object glass and eye…
Physics
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