INDEX 403 



PAGE 



Drawing oculars 105 



Draw tube 4 



Ebonite tubes 121 



Elasticity, axes of 172 



Electrochemical series 253 



Estimation of molecular weights 216 



Etching 391 



liquids 3Q2-394 



Evaporators for microchemistry 126 



Experiments in crystallization 182, 183 



Extinction 171 



angles 179 



Extraordinary ray 161 



Eyepieces, compensating 13 



cross-haired 163 



drawing 105 



goniometer 14 



Huygens n 



micrometer 149, 153-155 



negative 1 1 



net ruled ' 208 



positive ii 



projection 14 



Ramsden 1 1 



Eye-point 12 



Ferricyanides, detection of 377 



Ferrocyanides, detection of 378 



Fibers, textile, use of, in analysis 260 



preparation of, as reagents 271 



Files, method of using, to prepare metals for study 388 



Films of material for analysis, preparation 255 



Filter tubes 237, 238, 239 



Filtration 236 



Fluorescence microscope 51 



Fluorides as reagents, precautions 268 



Forceps 122, 123 



Fusions 248 



Gas lamps 26 



Gases, testing for evolution of 263 



Glass, refractive index of 200 



Glass rods 121 



Glycerin, use of 254 



Grade of abrasive wheels 385, 386 



Grain of abrasive wheels 385, 386 



