INDEX 



281 



Chromatic aberration, 48 



difference of magnification, 55 

 Chromo-acetic fixing fluid, 263 

 Chromo-isolar plates, 220 

 Cinemato-micrography, 187 

 Circle of confusion, 64 

 Clearing solution, 225 

 Clematis vitalba, 261 



Coarse adjustment, 31 

 Colouring lantern slides, 235 

 Colour photomicrography, 203 



Autochrome, 210, 273 



Bacteria, for, 241 



Comparison of processes, 212 



- Dufay, 210, 273 



Duplicating process, 211 



Paget, 210, 273 



Paget duplicating, 211 



Process, outline of, 273 



Sanger-Shepherd, 205 



Screens for artificial lights, 



204 



for screen plates, 209 



for two-colour process, 208 



Single process, 210 



Solutions for, 273 



Theory of, 204 



Three-colour, 204 



Two-colour, 208 



Colour prints, 203 



transparencies, 203 



Colour screens (or Light filters), 



153 



Carriers for, 8, 19, 138 



Choice of, 167 



Complementary, 162 



and contrast, 161 



and correct colour rendering, 



163 



and definition, 161 



and detail, 163 



Diatoms, for, 254 



Efficiency of, 154 



factors for "At" Screens, 174 



_ Focussing with, 167 



gelatine dyed, 155 



T 2 



Colour screens, To make, 156 



Glass, 155 



circles, 157 



illuminant and, 165 



insects, for, 252 



liquid, 157 



materials of, 155 



resolution, for, 61, 161, 254 



Rules for use of, 164 



Stains, for various, 267 

 Sets of, 156 



Use of, 161 

 Colour sensitive plates, 165, 214 



Sensitiser for, 270 



Compensating Eyepiece, 72 



with high -power achromats, 



74 

 Condenser, 102 



Aplanatic cone of, 102 



colour fringes, 103 



Experiments with, 115 



Focal length of, 103 



Function of, 102 



N.A. of, 103 



Power of, 103 



Uncorrected, 103 



Condenser, Auxiliary (or collecting 

 lens), 102 



Aperture of, 125 



Aplanatic, 105 



Biconvex lens, 106 

 Bull's-eye, 104 



To centre, 147, 148, 152 



Comparison of corrected and 



uncorrected, 105, 116 



colour fringes, 116, 126 



Corrected, 105 



Flasks as, 93, 106 



focus, To, 147 



Iris diaphragm for, 106 



Kohler, 105, 134 



Mounts for, 8, 106 



negative lens, Use of, 152 



Nelson, 19, 105 



rays, Diagram of, 124 



Use of, 124 



