CONTENTS. 



CHAP . PAGE 



I. INTRODTJCTION 9 



II. HOW FiSHES BREATHE 19 



III. HOW FISHES ARE CLOTHED .... 28 



IV. TEETH AND SPINES 37 



V. HEADS AND TAILS 46 



VI. FINS: THEIR USES AND WHAT THEY TEACH US 57 



VII. FISH-LIVERIES, AND WHY THEY ARE WORN 69 



VIII. HOW FISHES FEED .... 78 



IX. COURTSHIP AND NURSERY DUTIES . . 99 



X. LARVAL FISHES AND THEIR METAMORPHOSES 120 



XI. MIGRATION AND HYBERNATION . . . 138 



XII. TRANSFORMATIONS 152 



XIII. PEDIGREES 166 



XIV. PUZZLES AND PATRIARCHS . . . .193 



