INDEX 



355 



Oil immersion 14 



Pantachromatic 16 



Para-chromatic _. 16 



Par-focal .. . 3 1, 46 



Photography __ 206-210 



Photo-micrography 221 



Projection 16 



Putting in position and remov- 

 ing 30 



Screw-thread 77 



Section 16 



Semi-apochromatic 16 



Table of field 33 



Terminology 13 



Unadjustable 16 



Variable 16 



Visual and actinic foci__ 223 



Water immersion 19-23, 66 



Working distance 13, 39, 40, 47 



Oblique light, with Abbe illumi- 

 nator 56 



Mirror 48, 57 



Ocular, various forms 25-28 



Aplanatic 15 



Cleaning 70-72 



Cloudiness, how to determine 



and remove 71,101 



Compensation 28, 29 



Equivalent focus 29, 33, 191 



Eye-point 26, 37 



Field-lens ._' 37 



Filar or screw micrometer 



30, 133-136 



Function 36 



Huygenian 26, 27, 37, 130 



Indicator 80, 197 



Iris diaphragm 181 



Lettering and numbering 29 



Micrometer, micrometry 129-136 



Negative 25 



Parfocal 27, 43 



Photo-micrography 221 



Pointer 80, 197 



Positive 26 



Power 29 



Projection 29, 223 



Searching 28 



Spectroscopic 155 



Standard size 30 



Table 26 



Working 28 



Oil, and air appearances and dis- 

 tinguishing optically 103-106 



Cedar-wood 273 



Oil-globules, with central and 



oblique illuminations 104 



Oil immersion objectives 14 



Opaque objects, lighting 183, 238 



Photography 238 



Optic axis 2, 3, 12 



Condenser or illuminator 54 



Crystals 175 



Microscope 12-14 



Optical 1 



Center 2 



Focus 15 



Parts of compound microscope 



Frontispiece and , 11, 74 



Section 108 



Order of procedure in mounting 



objects dry or in air 252 



Glycerin and glycerin jelly 255 



Resinous media by desiccation.257 

 Resinous media by successive 



displacement 258, 311 



Ordinary ray, with polarizer 173 



Orthochromatic plates 214 



Orthoscopic ocular, field 32 



Outline distinctness 105 



Oven paraffin 293 



Over-correction 5 



Oxy-hemoglobin, spectrum.. 159, 169 



Paper, bibulous, filter, lens, or Jap- 

 anese for cleaning 'oculars 



and objectives 70 



Blotting for models .^1 326 



Paraffin 280 



Filtering 281 



Infiltrating 292 



Imbedding 293 



Method 291-304 



Oven 293 



Removing from sections 302 



Wax 280 



Parfocal objectives A 47 



Oculars .._ 43-45 



Pedesis 109, no 



Overcoming 115 



Polarizing microscope no 



Penetrating power . 24 



Pentration of objective 24 



Percentages, of liquids 270 



Permanent, mounting 252 



Preparation of isolated cells 260 



Permanganate of Potash,, spectrum 



. 157, 168 



Petri dish 249 



Photographing bacterial cul- 

 tures ... ....243 



Petroleum light 42,60, 226, 233 



Pharmacological products, exami- 

 nation 182 



Photo-engraving, drawing and let- 

 tering 324 



