CONTENTS 



I. The Relation of Animals to Minerals, to Plants, 



AND TO One Another 7 



^11. The Nature or the Cells of which Animals 



AND Plants are Composed 11 



III. The Growth of Animals and the Functions of 



their Organs 18 



IV. The Classification of Animals .... 24 

 V. Amceba, Vorticella, Paramecium .... 29 



VI. Sponges 36 



VII. Hydr^, Jkllyfishes, Sea Anemones, Coral Polyps 45 



VIII. Flatworms, Roundworms, and Rotifer's . . 64 



IX. Earthworms, Leeches, and Seaworms ... 75 



X. Starfish, Sea Urchin, Brittle Stars ... 89 



XL Mussels, Clams, Oysters, Snails, Squids . . 103 



XII. Clams, Oysters, and Mussels 112 



XIII. Crayfish, Lobsters, Spiders, and Insects . . 124 



XIV. Scorpions, Spiders, and Ticks • . . .144 

 XV. Locusts, Botterflies, Bees, Wasps . . . 155 



XVI. Other Members op the Class — Insecta . . 170 



XVn. Branch XTL — Chordata 200 



XVIII. Urochorda and Vektebrata 203 



XIX. Fishes 208 



XX. Frogs, Toads, and Salamanders .... 229 

 XXL Snakes, Turtles, Lizards, Crocodiles . . .246 



XXIL Birds 268 



XXin. Birds (Continued) 279 



S 



