x CONTENTS OF VOLUME I 



PAGE 



CHAPTER XII 

 FOOD AND FEEDING ........ 90 



CHAPTER XIII 



^NESTS AND EGGS, AND NESTLING BIRDU , 98 



CHAPTER XIV 



MIGRATION . . . . . . . . . 104 



CHAPTER XV 

 REPTILES, FISH, ETC, 



STUDY OF REPTILES . . . . . . . .109 



CHAPTER XVI 



THE STUDY OF AMPHIBIANS THE LIVING FROG EXTERNAL FEATURES 

 THE FROG A "COLD-BLOODED" ANIMAL THE YEAR'S LIFE OF THE 

 FROG LIFE-HISTORY ....... rao 



CHAPTER XVII 



STUDY OF FISHES FIRST STUDY : THE LIVING FISH SECOND STUDY : THE 

 EXTERNAL CHARACTERS OF FISHES THIRD STUDY : THE LIFE-HISTORIES 

 OF FISHES ......... 136 



CHAPTER XVIII 



THE LOWER VERTEBRATES CYCLOSTOMES OR ROUND-MOUTHS THE LANCE- 

 LETS THE SEA-SQUIRTS OR TUNICATES . . . . . 151 



CHAPTER XIX 



INSECTS, SPIDERS, WORMS, ETC. 

 EARTHWORMS . . . . . . . . , 160 



CHAPTER XX 

 THE COCKROACH . . . . . . . 171 



CHAPTER XXI 



EARWIGS . . . . . . - i?7 



CHAPTER XXII 

 THE LARGE CABBAGE WHITE BUTTERFLY . . . .181 



CHAPTER XXIII 



WASPS , *9 T 



