The microscope; an introduction to microscopic methods and to histology (1917)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Pub. Co. · leaf 127
Fig. 68. SmallAir Bubble- (4)and Oil Globule(0) with ObliqueLight. The arrow indi-cates the directionof the light. 114 DETERMINATION OF THE CHARACTER OF OBJECTS [Ch. IV ^ ■^ … selected for observation. If a 16 mm. objective is used instead of a4 mm., the appearances will vary considerably from that given abovefor the higher power. It is well to use a low as well as a high power.Marked differences will also be seen in the appearances with objectivesof small and of large…
Microscopy · Microscopy -- Technique
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