ZOOLOGY: DESCRIPTIVE AND 

 PRACTICAL. 



PART I. DESCRIPTIVE. 



CHAPTER I. 

 BRANCH ARTHROPODA. 



CLASS INSECTA. 

 Example. The Grasshopper. 



The Life of an Animal. In order to understand the life 

 of any animal, try to get answers to such questions as these : 

 Where does it live? How is it adapted to its surround- 

 ings? What does it "eat, and how does it get its food? 

 What are its enemies, and how does it escape them ? 

 What is its chief mode of locomotion ? What is it doing 

 most of the time ? What seems to be its main object in 

 life ? What changes does it undergo in its growth ? Does 

 it eat the same kind of food, breathe in the same way, 

 move in the same way, or live in the same conditions dur- 

 ing the different stages of its development ? How does it 

 affect plant life ? What is its influence on other animals ? 

 Is it useful, either directly or indirectly, to man ? Is it 

 either directly or indirectly injurious to man ? 



Home Life of a Grasshopper. As indicated in its name, 

 we find this insect on plants. So well does its color har- 



i 



