CONTENTS. 



CHAPTEE PAGE 



I. INTRODUCTORY 1 



II. INHERITED MEMORY ..." 8 



III. INTRODUCTORY SKETCH . ' 16 



IV. COLOUR, ITS NATURE AND RECOGNITION 25 



V. THE COLOUR SENSE 32 



VI. SPOTS AND STRIPES 39 



VII. COLOURATION IN THE INVERTEBRATA 49 



VIII. DETAILS OF PROTOZOA . 56 



IX. DETAILS OF CCELENTERATA 59 



X. THE COLOURATION OF INSECTS 68 



XI. THE COLOURATION OF INSECTS 75 



XII. ARACHNIDA 82 



XIII. COLOURATION OF INVERTEBRATA . , - V . . . . 85 



XIV. COLOURATION OF VERTEBRATA 88 



XV. THE COLOURATION OF PLANTS ....... 95 



XVI. CONCLUSIONS . 97 



