TABLE OF CONTENTS 
PART I 
ANIMAL BIOLOGY 
PAGE 
Introduction.1 
CHAPTER 
I. The Grasshopper, an Introduction to the Study of Insects . 17 
II. Important and Familiar Insects.32 
III. Crustaceans and Related Forms.60 
IV. Fishes.68 
V. Amphibians ..82 
VI. Reptiles.99 
VII. Birds ..107 
VIII. Mammals.125 
IX. The Simplest Animals — Protozoa.141 
X. The Simpler Metazoa.152 
XI. Coelenterates. Hydra-like Animals.160 
XII. The Starfish Family.169 
XIII. The Worm Group.175 
XIV. The Mollusks.185 
PART II 
PLANT BIOLOGY 
XV. The Life of Flowering Plants . . . . . 195 
XVI. The Seed and the Seedling.219 
XVII. The Fruit 233 
XVIII. The Root.247 
XIX. Stems.260 
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