ing the width of the stage micrometer lines given in§ 197 (see also Fig. 123). Note the position of the graduatedwheel and of the teeth of the recording comb, and then rotate thewheel until the movable line traverses one space on the stage mi-crometer. Each tooth of the recording comb indicates a… … Fig. 119. Filar Micrometer Ocular. This filar micrometer ocular is ofthe Ramsden type and consists of a positive ocular with a moveable hair lineand two reference lines at right angles to each other as shown in A. Themoveable line must be carried over the entire length of the object to be meas-ured…
Microscopy
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