CONTENTS. V 



PART III. 

 INSECTICIDES, PREVENTIVES, AND MACHINERY. 



CHAPTER 1. 



PAGE 



Predaceous Insects, Parasites, and Fungous Diesases . . . 418 



CHAPTER II. 

 Farm Practice to prevent Insect Attack 423 



CHAPTER III. 

 Preventives 430 



CHAPTER IV. 

 Insecticides 434 



CHAPTER V. 

 Machinery 454 



