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INDEX
381
Heversal by Rontgen Rays, 358
Ripeniog, 175
Rontgen Rays, effect of, 69
,, ,, photography, 342,
346 Roscoe, 55 Rose Bengal, 165 Ross homocentric lens, 123
,, Panros camera, 143 Ruhmkorff coil, 342 Russell, 72
Rutherford, 293, 303, 305 Rytol tabloids, 139
Sachse, 13
Saeland, 73
Sand blast process, 223
Sanderson camera, 138
Sanger Shepherd, 241, 366
Scamoni, heliographic process, 222
Scheffer, 175
Schonben, 22
Schott, 117
Schutt, 235
Schwarzschild, 319
Scientific diagrams, 274
Screen half-tone, 266
,, yellow, 166 Seebeck's researches, 227 Seidel von, 116 Senefelder, 96 Sensitivity of human eye, 162
,, ,, ordinary photo plate,
162 Seyewetz, 180, 193 Sheppard and Mees, 176, 185 Shutters, 157 Simpson, 219, 228 Silver oxy-chloride, 174 Skerry, 175 Slipher, 308, 311 Solarisation, 177 Solar microscope, 321 Solomon's lamp, 49 Sound waves, 39 Spectrography, 306 Spectroheliograph, 294 Spectroscopic binaries, 310 Spectrum, 41 Spherical aberration, 110
,, lenses, 108 Square bellows camera, 138 Stand cameras, 138 Stein's heliopictor, 215
Stereoscope, 151 Stereoscopic camera, 149 Studio camera, 156 Swan, J. W., 266
Tabloid developer, 189
Talbot, 81
Telephoto lenses, 118, 286
Telescopes, 283, 286
Thames colour plate, 251
Thornton-Pickard shutter, 157
Three-colour process, 239, 275
Tighlmann, 223
Time thermometer, 186
Toning, 31
,, and fixing, 194 Tower telescope, 299 Toy cameras, 147 Transit of Venus, 311 Transparencies in colour, 262 Trivelli, 70, 178 Turner, 311
ULTRA-rapid cinematograph camera, 374 ,, violet light, 40, 169 Unicam shutter, 157 Universal projection apparatus,
338 Uranium intensifier, 190
Vertical balance, 212, Vignetting, 31 Villard, 68 Virida papers, 249 Vogel, 165, 310 Voigtlander, 15 Vojtech, 9
Wallace, 167, 319 Warner-Powrie process, 258 Warren de la Rue, 305 Water in atmosphere of Mars, 307 Watkins, 185
,, factor table, 186 Wedgwood's experiments, 4, 321 Welcome's exposure record, 173 Wet plate 24 Wetzlar, 174 Wheatslone, 151 White Bengal light, 47
,, silhouette, 5 Wide-angle lens, 127