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CONTENTS
CHAPTER I
PAGE
Historical and Theoretical Data 1
Clerk Maxwell, 2. Ducos du Hauron, 4. Collen and Ransonnet, 4. Chas. Cros, 8. The Theoretical Basis of Tri-Color Photography, 8. Ducos du Hauron, 9. H. W. Vogel's Theory, 9. Ives' Theory, 11. Von HiibFs Views, 13. Howard Farmer's Work, 16. Bull and Jolley, 16. J. Joly, 18. Newton and Bull's Work, 18. The Printing Inks, 23. The Superposition Failure, 23. Color Change by Juxtaposition, 24. The Theoretical Printing Inks, 26. Clay's Researches, 32. Four-Color Printing, 37. Footnotes, 40.
CHAPTER II
Color Filters or Color Screens 45
Theory of Filters, 46. The Action of a Filter on the Image, 53. The Extinction Co-Efficient, 55. The Making of Filters, 57. Gelatin Filters, 60. Protective Safe-Lights, 61. Liquid Filters, 67. Green Safe-Lights, 68. Tri-Color Filters, 70. Screen-Plate Filters. 78. Chromoscope Filters, 83. Filter Patents, 84. Hnatek's Filter Formulas, 89. Footnotes, 94.
CHAPTER III
Still Cameras and Chromoscopes 105
Cros & du Hauron, 105. du Hauron's 1862 Chromoscope, 106. Cros' Chromometcr, 109. Later Instruments, 113. Reflector Modifications, 139. Accessory Apparatus, 143. Footnotes, 145.
CHAPTER IV
Bi-Packs and Tri-Packs 152
Dialyte Systems, 152. du Hauron's Polyfolium Chromodialyticum. 153. Gurtner's Bi-Pack, 155. Lawshe's Pack, 155. Finnigan & Rodgers' Pack, 156. Other Systems, 157. Semi-Dialyte Systems, 158. Bennetto's Camera, 158. Davidson's Camera, 158. Ives' Camera, 159. Tri-Packs, 160. J. H. Smith's Tri-Pack, 160. Stolze's, 161. Thieme's. 161. Pfenninger's, 161. Ives', 161. Selle's, 162. Thornton's, 163. Hess', 164. Wolf-Heide's. 164. Lage's, 165. Schapovaloff's, 165. Forbes', 165. Tolnay & von Kovodsznay's. 165. Rolan's, 165. Footnotes, 165.