[3] In the present translation the necessary plates accompany the text.


[CONTENTS]
INTRODUCTIONxxxvii
PART I.
PHYSIOLOGICAL COLOURS.
I.Effects of Light and Darkness on the Eye[2]
II.Effects of Black and White Objects on the Eye[5]
III.Grey Surfaces and Objects[14]
IV.Dazzling Colourless Objects[16]
V.Coloured Objects[20]
VI.Coloured Shadows[29]
VII.Faint Lights[38]
VIII.Subjective Halos[40]
Pathological Colours—Appendix[45]
PART II.
PHYSICAL COLOURS.
IX.Dioptrical Colours[59]
X.Dioptrical Colours of the First Class[60]
XI.Dioptrical Colours of the Second Class
—Refraction
[74]
Subjective Experiments[80]
XII.Refraction without the Appearance of Colour[80]
XIII.Conditions of the Appearance of Colour[81]
XIV.Conditions under which the Appearance of
Colour increases[86]
XV.Explanation of the foregoing Phenomena[90]
XVI.Decrease of the Appearance of Colour[100]
XVII.Grey Objects displaced by Refraction[103]
XVIII.Coloured Objects displaced by Refraction[106]
XIX.Achromatism and Hyperchromatism[118]
XX.Advantages of Subjective Experiments
—Transition to the Objective
[123]
Objective Experiments[125]
XXI.Refraction without the Appearance of Colour[121]
XXII.Conditions of the Appearance of Colour[128]
XXIII.Conditions of the Increase of Colour[134]
XXIV.Explanation of the foregoing Phenomena[139]
XXV.Decrease of the Appearance of Colour[141]
XXVI.Grey Objects[142]
XXVII.Coloured Objects[143]
XXVIII.Achromatism and Hyperchromatism[145]
XXIX.Combination of Subjective and Objective
Experiments
[147]
XXX.Transition[150]
XXXI.Catoptrical Colours[154]
XXXII.Paroptical Colours[163]
XXXIII.Epoptical Colours[177]
PART III.
CHEMICAL COLOURS.
XXXIV.Chemical Contrast[202]
XXXV.White[203]
XXXVI.Black[205]
XXXVII.First Excitation of Colour[206]
XXXVIII.Augmentation of Colour[212]
XXXIX.Culmination[214]
XL.Fluctuation[217]
XLI.Passage through the Whole Scale[218]
XLII.Inversion[220]
XLIII.Fixation[221]
XLIV.Intermixture, Real[223]
XLV.Intermixture, Apparent[226]
XLVI.Communication, Actual[230]
XLVII.Communication, Apparent[235]
XLVIII.Extraction[237]
XLIX.Nomenclature[242]
L.Minerals[245]
LI.Plants[247]
LII.Worms, Insects, Fishes[252]
LIII.Birds[259]
LIV.Mammalia and Human Beings[262]
LV.Physical and Chemical Effects of theTransmission
of Light through Coloured Mediums
[266]
LVI.Chemical Effect in Dioptrical Achromatism[270]

PART IV.
GENERAL CHARACTERISTICS.

The Facility with which Colour appears [274]
The Definite Nature of Colour [276]
Combination of the Two Principles [277]
Augmentation to Red [277]
Junction of the Two Augmented Extremes [278]
Completeness the Result of Variety in Colour [279]
Harmony of the Complete State [280]
Facility with which Colour may be made to tend either to
the Plus or Minus side [281]
Evanescence of Colour [281]
Permanence of Colour [282]

PART V.
RELATION TO OTHER PURSUITS.

Relation to Philosophy [283]
Relation to Mathematics [286]
Relation to the Technical Operations of the Dyer [289]
Relation to Physiology and Pathology [291]
Relation to Natural History [292]
Relation to General Physics [293]
Relation to the Theory of Music [298]
Concluding Observations on Terminology [300]

PART VI.
EFFECT OF COLOUR WITH REFERENCE
TO MORAL ASSOCIATIONS.