INDEX 473 



PAGE 



Illumination, transmitted light ' 20 



ultraviolet ray 48 



Illuminator, Silverman 33 



Illuminators, vertical 77 



Immersion, method of refractive index determination 226 



method, liquids for 244 



objectives 6 



ultramicroscope 1 23 



Interfacial angles , 250 



Interference colors 260 



figures 259 



Interpretation of appearances with transmitted light 21 



reflected light 31 



lodates, detection of 425 



Iodides, detection of 425 



Iron, common salts 409 



detection by oxalic acid and barium salts 344 



potassium ferrocyanide 409 



thiocyanates 356 



Isometric system, characteristics of 267 



Isotropic bodies 51 



crystals 51 



refractive index of 227 



Jewelers' hacksaws 169 



Key to reagent blocks 462 



Kryptokinetic motion 106 



Lamps, microscope : 158 



Lead, common salts 369 



detection by hydrochloric acid 371 



metallic zinc '. 375 



potassium iodide 369 



triple nitrite reaction 373 



Leitz metallurgical microscopes 102 



Lens holders 145 



paper 10 



Light grasping power of objectives 8 



Liquids for determination of refractive index 244-246 



determination of refractive index of 238 



Litmus, purification of 447 



Litmus-silk fibers 447 



Luminescence microscope 48 



Magnesium, common salts 350 



detection by sodium phosphate 350 



uranyl acetate 350 



