The microscope; an introduction to microscopic methods and to histology (1917)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Pub. Co. · leaf 25
LM! … Fig. 10. Lens with a Principal Focus onEach Side. § 10a. Geometrical con-struction of images. — It should be remembered inmaking the drawings forthe geometrical construc-tion of images that thereare two fundamental lawswhich must always beobeyed. (1) Light rays extend in straight lines in a…
Microscopy · Microscopy -- Technique
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