CONTENTS 



CHAPTER I 



PAGE 



Introductory Studies of Living Animals . . < , i 



Fly, I ; Maggot, 3 ; Cockroach, 4 ; Spider, 5 j Cricket, 6 ; 

 Grasshopper, 7 ; Butterfly or Moth, 9 ; Caterpillar, 10 ; Tus" 

 sock Moth, 1 1 ; Beetle, 13 ; Damsel Fly Larva, 14 ; Plant Lice 

 and Scale Bugs, 15; Water Bugs and Beetles, 17; Getting 

 Acquaiflted with the Library, 18. 



CHAPTER n 



Studies of Insects 20 



Field Studies, 20 ; Grasshoppers or Locusts, 23 ; Compara- 

 tive Study of Orthoptera, 28 ; Key to Orthoptera, 29 ; Dragon 

 Fly, 30 ; Honeybee, 31 ; General Study of Insects, 33 ; Re- 

 view of Insects, 35 ; Key to Principal Orders, 36 ; Some Com- 

 mon Butterflies, 38 ; Summary of Insects, yj ; General Review 

 and Library Exercise, 40. 



CHAPTER III 



The Connection between Structure and Function . . 44 

 Protozoa: A Study of the Cell, 44; Comparative Study, 

 48 ; Review and Library Exercise, 49 ; Sponges, ; I ; Review 

 and Library Exercise, 53. Calenterates : Hydra, 54; Com- 

 parative Study, 58 ; Review and Library Exercise, 59* 

 Worms: Living Earthworm, 61 ; External Morphology, 64; 

 Internal Morphology, 64 ; Microscopic Anatomy, 66 ; Sum* 

 mary, 68 ; Review and Library Exercise, 70 ; Connection 

 between Structure and Function, 72. 



