TABLE OF CONTENTS 



PAGE 



PREFACE v 



CHAPTER I 

 WHERE ANIMALS LIVE I 



CHAPTER II 



THE GRASSHOPPER 8 



The habits, physiology, anatomy, and economic relations 

 of a typical insect. Locomotion (9). Food and mouth parts 

 (13). Digestion (13). Circulation (14). Respiration (15). 

 Excretion (15). Protection (16). Sensations (16). Ner- 

 vous system (17). Reproduction (18). Metamorphosis (19). 

 Relation to man (20). 



CHAPTER III 



SOME INSECT ADAPTATIONS 24 



Locomotion (24). Respiration (25). Securing food (25). 

 Coloration (29). 



CHAPTER IV 



INSECTS INJURIOUS TO VEGETATION 32 



Extent of injury (32). Army worm (33). Chinch bug 

 (35). Other insects injuring field crops (35). Insects injur- 

 ing garden vegetables (35). Insects injuring fruits (39). 

 Insects injuring shade trees (42). 



CHAPTER V 



INSECTS PARASITIC ON DOMESTIC ANIMALS AND MAN . . 48 

 Botflies (49). Fleas (51). Ticks (53). Lice (54). 



