TABLE OF CONTENTS. 



CHAPTER I. 



PAGE 



THE STRUCTURE OF INSECTS. 1-31 



External anatomy, 2 



Abdomen, 2 



Thorax 4 



Head, 6 



Internal anatomy, 7 



(Esophagus, 7 



Crop, 9 



Proveutriculus, 9 



Stomach and gastric cceca, 9 



Urinary tubes, 11 



Intestine, 11 



Digestion, 11 



Nervous system, 13 



How insects walk and fly, 17 



How insects breathe, 19 



The senses of insects, 21 



The eyes and sense of sight 22 



The olfactory organs and sense of smell, 26 



The gustatory organs and sense of taste, 27 



The ears and sense of hearing 28 



Sounds produced by insects, 30 



Tactile organs, 31 



CHAPTER II. 



GROWTH AND METAMORPHOSIS OF INSECTS. 33-53 



Egg-producing organs, 32 



The ovaries, 34 



The ovipositor, 34 



