470 
INDEX 
PAGE 
Colorimetry, micro-. . 215 
Compensating oculars. 
Compound microscope, optics of. j 
Condensers, Abbe. 23 
Jentzsch ultra. 122 
numerical apertures of. 23 
reflecting. 
Congo-red-viscose silk. 
Contrast micrometers. jg^ 
Converging polarized light. 259 
Coordinate ruled cells. 205 
ocular micrometers. 202 
object slides. 205 
Copper, common salts. ^g^ 
detection by potassium thiocyanate. ^85 
cesium chloride. gg^ 
potassium ferrocyanide. gg^ 
triple nitrite reaction. gg6 
Cotton and Mouton ultramicroscope. 120 
Counting cells. 205 
Course in chemical microscopy, synopsis of. 
Cover-glass, correction for. g 
gauge. i6g 
Cross-hairs, testing. gg 
Crossed nicols, testing for. g^ 
Crystal angles, measurement of. 264 
Crystallization experiments. 269 
Crystallographic concepts. 249 
Crystals, axes of. 250 
faces of. 250 
for determination of refractive index.247, 248 
symmetry of. 250 
under microscope. 249 
Cubic system, characteristics of. 267 
Cups, platinum. 296 
Cyanates, detection of. 424 
Cyanides, detection of. 423 
Dark-field illumination. g6 
illuminators, adjustable. gp 
ad j ustment of. 42 
numerical aperture in. 41 
path of light rays in. gg 
thickness of object slides for. 46 
Decantation. 278 
Decantation, washing precipitates by. 278 
Dendrites. 251 
