TABLE OF CONTENTS 



FIRST CHAPTER. 



PAGE 



Of Generation, 202213 . . . 306 



SECOND CHAPTER. 



Of Nutrition. 



Its general character and kinds, 2J4 216 . . 344 



I. Digestion, 217225 . . . 347 



II. Respiration, 226236 . . 384 



III. Circulation of the blood, 237 243 . . 403 



THIRD CHAPTER. 



The Metamorphoses, 244260 . 414 



FOURTH CHAPTER. 



The Muscular Motion, 261267 . . .445 



FIFTH CHAPTER. 



The Sounds emitted by Insects, 268271 . 466 



SIXTH CHAPTER. 



Of Sensation and the Senses, 272 278 . . 474 



SEVENTH CHAPTER. 



The Luminousness of Insects, 279282 . . . 490 



SECOND SUBSECTION. PSYCHOLOGICAL PHYSIOLOGY. 



The Nature and Object of Instinct, 283286 . . 498 



EIGHTH CHAPTER. 



THEIR SELF-PRESERVATION. 



I. Means of Defence, 288 . . 504 



II. Instinct of Nutrition, 290 . 511 



