bination is generally takenadvantage of in histology. The air bubble in \ 151 is an example of a purelyrefractive image. \ 10S. Refraction.—Lying at the basis of microscopical optics is refrac-tion, which is illustrated by the above figures. It means that light passingfrom one medium to another is… … 61. Figs. 61-63. Diagrams illustrating refraction in different media and atplane and curved surfaces. In eaeli ease the denser medium is represented byline shading and the perpendicular or normal to the refracting surface is repre-sented by the doited line N-N, the refracted ray by the bent line A…
Microscopy
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