Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine, fully illustrated with plates and with over 400 text-figures (1914)

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720 OPTIC PROJECTION Micro-projection, addition to the magic lantern 307-309 advantages 223 alternating current 284 apparatus 221, 319 centering 246 college, bench lantern 301 condenser for 237 conditions for good 309 direct current arc lamp 236 illumination for 236, 248, 271, 284, 286-287, 305, 328, 335, 339, 598, 616-620 house-circuit 285 lime light 287 objectives 224-226 ordinary microscope 262 outfit for photography . .382, 386 room 235 screen 235 size of image 470 size of screen 470 size of specimens 224, 255 summary 313 sunlight 286 troubles with 301 weak lights for 287 Microscope with amplifier. . .238, 600 for drawing on horizontal surface 344 drawing with inclined 345 focusing device 241 house circuit drawing outfit . . 343 getting light through with concave mirror 347 magic lantern lamp and condenser 336 objectives, objects to project with 269 photo-micrography 385 plane mirror 34^ position for drawing 345 projection and drawing 275 projection with ordinary. 262, 263 projection with vertical 267 slide, masks for 252 specimens, projection of 269 tube 241 size and image 243 vertical with high powers. ... 283 vertical, stray light 268 without ocular or substage condenser 334 Microsummar 225 Microtessar 225~579 Milliet de Chales 676, 679 Mirror 574 at end of clock-shaft (helios tat) 152,153 concave 573 convex 575 reflection 572-573 attached to drawing table ... 324 concave, as reflector 127 concave, without substage condenser 349 45 degree with vertical objective 46, 267 to illuminate opaque object . . 1 75 light through microscope with concave 347 with plane 346 on drawing table 324 parallel to clock-shaft (helios tat) • 154 position at equator, for helio stat I58 position at poles for a helicstat 1 58 position and time of day with the heliostat 144 screen 459 silvered on face with dim light 331 to get erect image 190, 361 to reflect image to drawing surface 322> 337 Mirroroide 459 Misframe 434 Mixed jet 105, 107 Models, drawing for 357 Moler, Geo. S 218, 219 Molyneux 677 Motion of picture film 419 Motion Picture Screen Co 459 Motor-generator set 489 Mounting, condenser 17, 62 lantern slides 216 low power objectives 241 Movement of lamp at its limit . . 47 intermittent with cameragraph 41? Moving pictures, 390, 409, 435, 468, 570, 591, ooo apparatus for 39° apparatus, getting in correct position 412 development of the art ... 391 , 680 and education 394