x CONTENTS OF VOLUME I 



PAGE 



CHAPTER XII 

 FOOD AND FEEDING .... 90 



CHAPTER Xiil 



NESTS AND EGGS, AND NESTLING BIRDU 98 



CHAPTER XIV 

 MIGRATION ....... . io/j 



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 . . . . . . .120 



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 . . . . . . , , . 177 



CHAPTER XXII 

 THE LARGE CABBAGE WHITE BUTTERFLY . 181 



CHAPTER XXIII 



WASPS . 191 



