Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 129
d it comesso near the theoretical standardof perfection, when used vdth lowpowers of moderate apertuie, that its performance may be con-sidered highly satisfactory. Its definition, however, when usedwith higher powers of larger angular aperture, has not yetbeen rendered sufficiently good, to enable… … Naehets Binocular Microscope. nachets binoctjlae, miceoscope. 107 definition is to be anticipated, Eor although, their _course on entering and emerging-from each prism may beperpendicular to its surfaces, so that they suffer no refrac-tion, many of them -wiU be slightly oblique, and vdll there-fore…
Microscopy
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