318 



SUBJECT INDEX 



Microscope, phase, illustrations of, 116, 



118, 120-126, 148 

 Microscopy, 2, 11 



darkfield, 169 



electron, 174 



imagery, 3, 5 



methods compared, 168 



phase, 4, 5, 6, 10, 11 



application of Brewster's angle 

 phenomenon, 164 



equipment for, 113 



Franyon's auxiliary system, 151 



polanret methods, 156 



variable amplitude, 155, 161, 164 



variable color-amplitude, 165 



variable phase, 155 



vertical illumination, 145, 229, 231 

 Milk, 228 

 Mineralogy, 225 

 Mitochondria, 208, 219 

 Mitosis, 208, 220 

 Motion, stopping, 187, 197 

 Motion pictures, 186, 210, 211 

 Mucor, 194 

 Muscle, 194, 195, 212 

 Mycelium, 201, 204 



/3-Naphthol crystals, 189, 223 

 Narrow conjugate areas, 269 

 Nematode, 205, 207 

 Nervous tissue, 182, 212 



cell development, 212 



choroid plexus, 212 



dorsal root ganglia, 210 

 Neutral quadrant, 159 

 Nissl body, 212 

 Non-uniformly altered higher orders, 



279-282 

 Numerical aperture, 68, 248, 253 



zonal, 248, 250 



Object function, 257-263 



composite, 267 



for large fields, 282-285 



for periodic structure, 264 

 Oblique illumination, 257, 278 

 Oedipoda, 192 

 Oil, 229 



paraffin, 229, 238 

 Oncology, 220 



Onion, 219 



Optical direction cosines, 241, 247, 248 



Optical path, 17 



Optical path difference between conju- 

 gate and complementary areas, 

 87, 93, 94, 96 



Optical sectioning, 210 



Optimum contrast, 30, 31 



Out-of-focus planes, 243, 244 



Paints, 229 

 Paper, 231, 232 

 Paraffin, 223, 224 

 Parallax, 78 

 Paramecium, 186, 206 

 Parasites, 220 

 Particle size, 182 



visibility, 1 

 Particles, having absorption only, 53 



in large fields of view, 282-285 



isolated, 285-287 



large, 128, 287, 288 



more than one, 33, 65 



of periodic structure, 33-36, 264-281 



jjlate-like, 262-264 



stained, 61-64 



unstained, 50-51 

 Pathology, 220 

 Pearlite, 233 

 Pediastrum, 205 

 Pharmaceuticals, 228 

 Phase, 15, 37 



variable, 155 

 Phase advance, 15 

 Phase condenser, 115 



long working distance, 127 



mounts, 115 

 Phase contrast, color in image, 89, 96, 

 165 



neutral image, 89, 105 

 Phase microscope; see Microscope 

 Phase objectives, 113 

 Phase plate; see Diffraction plate 

 Phase retardation, 15 

 Phase transmission. A, 44, 48, 263 



S, 46, 47, 48, 251, 252 

 Photomicrography, 186 



exposure, 188 



high-speed, 187 

 Photomicrography, stereo-, 189, 190, 230 



