CONTENTS 



CHAPTER PAGE 



I. Insects in their Relation to the Animal King- 

 dom 9 



II. Insects in their Relation to Plants as Bene- 

 factors 2 1 



III. Insects in their Relation to Plants as De- 



stroyers 40 



IV. Insects IN their Relation to Each Other 84 



V. Insects in their Relation to the Animals that 



Feed on them 130 



VI. Insects in their Relation to Weather and Dis- 

 eases THAT Affect them 138 



VII. Insects IN their Relation TO Other Animals. .. . 153 



VIII. Insects in their Relation to Man: as Benefac- 

 tors 185 



IX. Insects in their Relation to Man: as Carriers 



OF Diseases 199 



X. Insects IN their Relation TO the Household.. . 217 



XI. Insects in their Relation to the Farmer and 



Fruit-grower 249 



XII. The War on Insects 271 



Index 309 



