The history of three-color photography (1925)

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General Index 739 PACK Green filter 22, 71 Green filter, additive 92 Green filter, fundamental 92 Green illumination 61 Green paper 63 Green, primary 14 Green, pure 28 Green sadness 28 Green safe-lights 61, 67, 68 Green sensation 18 Green sensitizers 252 Green spots, Autochrome 52*) Guaiacum, sensitive 419 Gum arabic screen-plate Gum-dichromate pigments 425 Gum-dichromate process 438 Gum-dichromate, tri-color 424 Gum prints with cyanotype base 425 H 94 H. & D. System 288, 317 H. & D. speed Autochrome plates 534 Haematoporphyrin 242 Halation 212, 239 Halation, front 163 Half lenses 621 Half-tone screens with filters 102 Halide and caustic alkali 356 Halide grain, etching 223 Hardening pinatype films 396 Hauron's chromographoscope, du 118 Hauron's filters 99 Hauron's screen-plate 454 Heating panchro plates 220 Heat toning 403 Hektograph 414 Hering's four-color theory 37 Herschelian lenses 168 Hexagon screen-plates 459 History of color-sensitive plates 211 History of screen-plates 454 Hnatek's filter formulas 89 Hodgman's filter formulas 91 Home-made carbon tissue 331 Home-sensitizing 269 Horse's blood 242 Hiibl's colorimeter 31, 92 Hubl's dye test 49 Hubl's theory 13 Rubra inks 28 Hubl's theoretical inks 30 Hiibl's unit 94 Hiibl's viscosimeter 228 Hubl's safe-lights 66, 68 Hydrazin yellow 103 Hydrogen peroxide dissolves gelatin 357 Hydrosol, silver chromate 380 Hydrosol, silver iodide 380 Hvdrotypie 3f)0 Hydrotype 360, 390, 414 Hypersensitized Autochromes 82 Hypersensitized Autochrome filter 82 Hyper-sensitizing plates 271 Hyper-sensitized screen-plates 101, 510 Ideal filter and plate 19 Ideal inks 21, 26, 27 Ideal screen-plate Ideal tri-color negative 19 Illumination, spectral '. 103 Image, action of filter on ^^ Image, anterior 175 Image, cyanotype blue 452 Images, doubling l-'l Image, optical rotation 597 Images, tetrachromatic 593 Images in trefoil 136 Imbibition process 390, 412, 41 ^ Imbibition, chemical toning and 149 Imbibition with chemical solutions 361 Imbibition cine films 363 Imbibition dyes 996 Imbibition matrices 363 Imbibition, metal support 415,416 [inhibition, mordants 385, 390 Imbibition, pore-filling 3% Imbibition process, Christensen's 346 Imbibition, reliefs for 346 Impurity of inks 30 Increase of dye thickness 47 Individual prot ul>erance> in reliefs 355 Indocyanins 284 Indolenino-eyanins 284 Inert powders in reliefs 346 Inertia, photographic 19 Inflatable drums 619, 650 Infra-red collodion emulsion 238 Infra-red rays 214, 247 Indoxyl 405, 417 Inductors dye 385 Inert powder in positives 441 Inks, Abney's 30 Inks, absorptions of 20, 27, 31, 33, 35 Inks, anilin 27 Ink, blue-green 21 Ink, blue 26, 36 Inks, Clerc's theoretical 31 Inks, correct 20, 29 Inks, complementary 27, 35 Ink, crimson 26 Inks, cyanide blue 27 Inks and filters 15, 16 Inks, Hubl's 28, 30 Inks, ideal 21, 26. 27 Inks, impurity of 30 Inks, intensity of 32 Inks, Ives* 26, 43 Ink, minus-blue 22 Inks, Payne's 21 Ink, peacock blue 26 Ink, permanence of 21 Ink, red 22, 35 Inks, Shepherd's 30 Inks, spectroscopic tests of 36 Inks, stable 29, 71 Inks, theoretical 26, 28 Inks, tinctorial power of 27 Inks, transparency of 26, 34 Inks, Wallace's 31 Inks, yellow 17, 21, 26 Inks, Zander's Inorganic gels absorption of dyes 3*4 Insulating coat 446 Intensification, physical screen-plate 527 Intensification, screen-plate 525 Intensifies Agfa 527 Intensifying with dyes 3^7 Intensifying transparencies 451 Intensity of inks 32 Intergranular ripening 223 Interstices, screen-plate 464,475 Inverse law 2^1 Inversol 524 Invert albumen 99 Iodo-cyanin 247 Iodide in developer 356, 362 Iodide of silver mordant 378 Iron mordants 367, 368, 372, 373 Iron toning 398, 399, 694 Iron toning cine films 631 Irradiation, emulsion 463,551 Isochromatic 282 Isocyanins 9, 217, 220, 223, 241. 256 Isocyanins, decolorized 223, 271 Isocyanins. recovery of 277 Isolation of screen -plate filter cuts 474 Isopaque curves 291 Ives' cine hi -pack 600 Ives' filters collodion 58 Ives' inks 12,26, 43 Ives' theory 11 Joly's curves 18 Joly screen-plate 18,464 Jonas' collodion emulsion 231 Jones plate tester. Chapman 251 Tos-Pe process 362 Juxtaposed dots 24 Juxtaposition, color change by 24 Juxtaposed lenses 594, 598, 613 Kairolamprotic 282 Katachrome 277