INDEX 



461 



Measuring thickness of slides and cov- 

 ers, 319-320 



spread of dividers, 134 

 Mechanical parts of compound micro- 

 scope, 27, 99 



care of, 92 

 Mechanical stage, 102 

 Mercuric chlorid, 362 



crystals, 361-362 

 Methemoglobiu spectrum, 261 

 Method, collodion, 387 



paraffin, 375 

 Methyl alcohol, 349 

 Methylated spirits, 349 

 Methylene blue, 356 



alkaline, 362 



and eosin, 356, 398 

 Micrometer, 135, 143 



arrangement of ocular and stage, 

 145, 158 



cahpers, 318 



cobweb, 148 



filar, 147-149 



filling lines of, 136 



net, no, 156 



object or objective, 135 



ocular and stage, 135 



ocular or eye-piece, 143-153 



ocular, valuation of, 143-145 



ocular, varying the valuation of, 

 144, IS7 



photo-micrography and, 228 



screw ocular, 146 



stage and ocular (fig.), 13S, 136 



table of magnification, 143 

 Micrometry, 146-159 



adjustable objectives in, 139, 144, 



157 

 comparison of methods, 153-157 

 compoimd microscope, 150, 159 

 condenser, image of scale, 155 

 eikonometer, eiconometer, 149, 154- 



155 

 in jurisprudence, 157-159 

 limit of accuracy, 158 

 ocidar micrometer, 152 

 remarks on, 157-159 

 simple microscope, 149 



Micrometry, unit of measure in (n), 150 

 Micro-miUimeter, 150 



micron (^), mikron, 150 

 Micro-photograph, photo-micrograph, 



215 



Micro-polariscope, 264-269 



experiments with, 267-269 

 Micro-projection, 184, 189, 197 



drawing with, 184, 189 



magnification of, 1 70 



masks for specimens in, 199-200 

 Microscope, 4-6, 429, 430 



amplification of, 131 1 



binocular, 82-91, 431-433 



care of, 92-94 



double objective, 83, 88 



Dutch, 429-430 



erecting, 88 



experiments with, 88-89, 9i 



field, 29-30 



fig. of field, 84-85, 87 



focusing, 15, 36, 37-38, 42-43, 89, 

 224 



history of, 428-439 



magnification, 131 



photo-micrography with, 217-231 



polarizing, 264-269 



projection, andhistory, 197,438-439 



simple, 7, 133-140 



stand for embryos, 210 



solar, 198 



traveling, 195 

 Microscope, compound, 7, 16 



cost of, 100 



drawing with, 170-172 



Dutch and Keplerian forms, 429- 



43° 

 high-school, 99-100 

 history of, 429-439 

 laboratory, 99-100 

 magnification with, 131 

 mechanical parts, 27, 99 

 micrometry with, 150-159 

 optical parts, 16-27 

 quaUty and cost, 99 

 testing, 97-99 



varying magnification of, 139, 157 

 working distance, 39 



