The microscope; an introduction to microscopic methods and to histology (1917)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Pub. Co. · leaf 39
. Power of OcularsAs oculars of all kinds aremade in different magnifyingpowers, there is needed someform of designation. Manydifferent ways of designationhave been used, as lettering,numbering, giving the equiva-lent focus, etc. § 41. Lettering or number-ing. —This is a purely arbitraryform of… … Fig. 24. High-power HuygenianOcular. Axis The principal optic axis. FL Field-lens. d, ri The diaphragm and real imagebetween the ocular lenses. EL Eye-lens. Eye-point The eye-point in sectionand face view, looking down upon theupper end of the ocular. indicate progressive increase in power,…
Microscopy · Microscopy -- Technique
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