necessary unless the object has a con-siderable thickness. Fig. 126. Centering Card. A cardwith slops for the slide and circles inthe position occupied by the center of theslide. If the slide is put upon such acard it is very easy to arrange theobject so that it will be approximately inthe center… … 150 MOUNTING AND LABELING. {CM. Ill. 2. A suitably prepared object (§ 235) is placed on the center of a cleanslide, and if no cell is required a centering card is employed to facilitatethe centering (Fig. 126.) 3. A drop of pure glycerin is put upon the object, or if a cell is used,enough to fill…
Microscopy
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