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CONTENTS 



CHAPTER PAGE 



I. The PHYsiCAii Cause of Animal Colours ... 1 



II. The Uses of Colour . . . . . , . 12 



III. Protective Eesemblances m Lepidoptera ... 24 



IV. Protective Eesemblances in Lepidoptera {continued) 



— Dimorphism, etc 42 



V. Protective Resemblances in Vertebrata, etc. . . 60 



VI. Aggressive Resemblances — Adventitious Protection 72 



VII. Variable Protective Resemblance in Vertebrata, 



ETC. .......... 81 



VIII. Variable Protective Resemblance in Insects . . 110 

 IX. Variable Protective Resemblance in Insects (con- 

 tinued) 133 



X. Warning Colours 159 



XI. Warning Colours (continued) 189 



XII. Protective Mimicry 216 



XIII. Protective and Aggressive Mimicry .... 245 



XIV. The Combination of Many Methods of Defence . 269 

 XV. Colours Produced by Courtship . . . . 284 



XVI. Other Theories of Sexual Colouring . . . 314 



XVII. Summary and Classification ...... 336 



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