- Abnormal light, 13
- Analysis of white light, 11, 13
- Arbitrary scales, 9
- Artists and scientists, 1, 2
- Beam of white light, 7, 11
- Black units, 16, 23
- Black, ideal, 15, 11
- Blood curves, 33
- Code of laws, 7
- Colour charts, 31, 39
- education, 59
- equivalence, 10
- nomenclature, 17, 21
- qualitative, 17, 19, 24
- quantitative, 24
- scales, 20, 29
- standardization, 20, 69
- theories, 2, 3
- Coloured surfaces, 44
- Colours, complex, 18
- sadder than standards, 25
- simple, 17
- Corbett, Dr. Dudley’s, radiometer, 83
- Daylight colours, 24, 84
- measurement, 14
- Diffused light, 10, 43
- Direct lights, 46
- Dulled colour, 10, 18-26, 36
- Equivalent colour units, 7, 9, 29
- Fog, whiteness of, 10
- Glass standards, 20
- Human blood curves, 82
- Laws of colour, 7
- Light, 11, 13, 42, 45-46, 81-84
- abnormal, 8
- brighter than standards, 14, 27
- direct, 46
- for colour work, 42
- intensities, 42, 43
- white, 14
- Lovibond’s new colour theory, Butler & Tanner Frome and London
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