CONTENTS. 



INTRODUCTION: PAGE 



The Study of Nature 1 



The Difference between Mineral and Living Bodies 1 



The Difference between Plants and Animals 3 



Definition of Zoology 7 



How to Study Animals 7 



Classification 9 



Paleontology 10 



Geographical Distribution 11 



CHAPTER 



I. The Amoeba and other Root-animalcules 12 



II. The Monad and other Infusorians 17 



III. The Sponges 21 



IV. The Hydra and Jelly-fish 26 



V. The Polyps and Coral-makers . . . 32 



VI. Starfish, Sea-urchins, and Sea cucumbers 39 



VII. The Worms 50 



VIII. The Clam and other Bivalved Shell-fish 54 



IX. Snails and other Univalve Shell-fish 72 



X. The Lobster and other Crustaceans 77 



XI. Scorpions and Spiders 90 



XII. Millepedes and Centipedes 91 



XIII. Locusts and Grasshoppers , 92 



