The Boston school compendium of natural and experimental philosophy .. (1837)
Parker, Richard Green, 1798-1869 · Boston : Marsh, Capen & Lyon · leaf 155
represents a microscope; Explain thefigure. What lenses have the greatest magnifying power? What lenses have theshortest focus ; Of what does a double microscope consist. What is the use ofthese two lenses! 144 NATURAL PHILOSOPHY. Fig. Ill represents the effect produced by the lenses of a… … The rays which diverge from this image are collected by the lens,N O, (called the eye glass, because it is nearest to the eye.) whichacts on the principle of the single microscope, and forms a stillmore magnified image on the retina R R. 369. The solar microscope, is a microscope with amirror…
Physics
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