Resolving Power, 82, 101 



Test Objects for Determining, 132 



Revolving Diaphragm, 53, 131 



Revolving Nose-piece, 43 



' To Focus with, 127 



Revolving Stage, 38, 188 



Screw Driver, 199 



Screw Micrometer, 180 



Searcher Eyepiece, 111 



Searcher Objective, 126 



Secondary Spectrum, 85, 102 



Simple and Compound Microscopes, 1, 14, 27 



Simple Lenses, 4 



Magnifying Power of, 25 



Single System of Lenses, 66 



Size and Weight of Microscope, 187 



Slide or Slip, 34 



Slide Carrier, 39 



Sliding Tube Adjustment, 45, 184 



To operate, 128 



Slow Motion, 48 



Society Screw, 31 



Solid Eyepiece, 108 



Special Objectives, 64 



Spectrum, 11, 85, 102 



Spherical Aberration, 9, 88, 96 



Influence of Cover Glass on, 88 



To Judge, 138 



Spring Clips, 33, 187 



Stage, 18, 32, 187 



Construction of, 37 



Glass, 39 



Mechanical, 40, 120, 188 



Revolving, 38, 188 



Working Space Below, 187 



Stage Micrometer, 176, 177, 179, 193 



