Colour Measurement and Mixture

by Sir William de Wiveleslie Abney

INDEX.

Absorption by red, blue, and green glasses,	[53]
Absorption of light in the earth's atmosphere,	[67]
Absorption, reference to law of,	[53]
After-glow,	[74]
Arc light,	[20]
Artists and colours,	[195]
Balmain's paint,	[33]
Black body,	[18]
Blindness to green,	[142]
Blindness to red,	[79-142]
Bromo-iodide of silver,	[136]
Carbon poles,	[20]
Carmine, light reflected from,	[107]
" template,	[106]
Chlorophyll, green solution of,	[51]
Collimating lens, focal length of,	[22]
Colour, analysis of,	[52]
Colour-blind, red and green,	[79] , [80]
Colour-blindness,	[142-146], [157] , [159]
Colour constants,	[15]
Colour equations, formation of,	[147] , [148]
Colour, extinction of, by white light,	[126]
Colour mixtures,	[113]
Colour patch apparatus,	[41-52]
Colour sensation of the eye,	[202]
Coloured discs, use of,	[189]
Coloured glasses, measurement of,	[162]
Colours, complementary of pigments,	[170-172]
Colours, complementary of spectrum,	[167]
Colours, how matched,	[156] , [157]
Complementary colours, measurement of,	[173-178]
Compound colours, definition of,	[16]
Continuous spectrum,	[17]
Contrast colours,	[196-200]
Diffraction gratings,	[23]
" spectra,	[24]
Dimness and brightness of spectrum,	[29]
Discs, spinning,	[182]
Dust, particles of,	[62]
Electric light, contrast colours in,	[197]
Electric light, crater of positive pole of,	[20]
Emerald green, light reflected from,	[94]
Equations, colour,	[147]
Essentials of spectrum,	[22]
Extraction of colour by white light,	[126]
Extraction of white light by colour,	[131]
Eye, sensitiveness of,	[15]
Fatigue of the retina,	[202]
Fluorescence,	[31]
Fundamental sensations,	[140]
Gamboge, matching,	[189]
Glass, light from sheet of,	[14]
Glass prisms,	[21] , [22]
Glow-worm,	[13]
Green colour-blindness,	[142]
Heating effect of radiation,	[38]
Hue,	[15]
Images, after,	[202]
Images, persistence of, on retina,	[179]
Impurity of simple colours,	[124]
Indicator of sectors,	[48]
Infra-red rays,	[32]
" photography with,	[34]
Insensitiveness of the yellow spot to green,	[118]
Intensities of limelight, gaslight, and blue sky compared,	[110] , [121]
Interference,	[58] , [59]
Interference bands on soap film,	[60]
Invisible spectrum, methods for showing existence of,	[32] , [33]
Kœnig's curves,	[151]
Kœnig's experiments,	[140]
Law of the scattering by fine particles,	[66]
Light from sun, imitation of,	[63]
Light, quality of, illumining object,	[14]
Light scattered,	[62]
Limelight,	[19]
Lines in solar spectrum,	[26]
Luminosity,	[13]
Luminosity, addition of one to another,	[85-87]
Luminosity of colour,	[16]
Luminosity of pigments, methods of determining,	[81] , [82]
Luminosity of spectrum to normal-eyed and colour-blind persons,	[76-78]
Luminosity of sun at different altitudes,	[69-71]
Maxwell's colour-box,	[152] , [153]
Maxwell's discs,	[184-186]
Measurement of amount of light reflected by different pigments,	[88-92]
Metals, light reflected from,	[100]
Mock suns, cause of change of colour in,	[64]
Molecular physics,	[54]
Molecular swings,	[136] , [137]
Monochromatic light,	[47]
Negative images,	[203]
Normal vision,	[77]
Orange, finding luminosity of,	[190]
Percentages of skylight, sunlight, and gaslight,	[110] , [111]
Phosphorescence,	[32] , [56]
Pigments, absorption by,	[57] , [58]
Plan of forming spectrum,	[21]
Polished and uneven surfaces,	[13]
Primary colours, definition of,	[133-] [135]
Prism, Iceland spar,	[96]
Prismatic spectrum into wave-lengths, conversion of,	[28]
Prisms, drawback to use of,	[23]
Prussian blue template,	[107]
" " light reflected from,	[107]
Purity of colour,	[16]
Rays, infra-red,	[34]
Rays, photography of dark,	[34]
Rays, ultra-violet,	[34]
Registering tint of pigments,	[116]
" " colours,	[156]
Retina, persistence of images on,	[179]
Ritter's rays,	[32]
Rood's colour scale,	[26]
Rotating sectors,	[46]
Scaling of spectrum,	[49]
Sectors, rotating,	[46]
Simple colours, how obtained,	[112] , [113]
Slits placed in spectrum,	[113]
Soap-bubbles,	[58] , [59]
Soap-films,	[59]
Spectrum, absorption of,	[51] , [52]
Spectrum of sunlight,	[18]
Sun, mock,	[64]
Sunset clouds,	[68] , [69] , [72] , [73]
Sunset sky,	[72] , [73]
Thermopile, heating effects of,	[36]
Thermopile, principle of,	[35]
Ultramarine, light reflected from,	[95]
Ultra-violet rays,	[31]
Vermilion, light reflected from,	[93]
Vibrations of rays per second,	[55]
Violet bands, brightness of,	[21]
Visible and invisible parts of spectrum,	[30]
Water, particles of,	[62]
Wave-length of lines in solar spectrum,	[26]
White light and contrast colours,	[200-202]
White light, extinction of by colour,	[131]
White light, formation of by mixture of yellow and blue,	[125]
White light, how made,	[114] , [115] , [119-123]
White light, impression of,	[81]
Yellow and blue make white,	[125]
Yellow, chrome, luminosity of,	[191]
Yellow spot,	[117]
Young-Helmholtz theory,	[138]

THE END.

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