XVI CONTENTS. 



CHAPTER II. PAGE 



Polypifera. Hydroida Zoophytes, or Polyps Bryozoa Acalephae 

 Echinidae Holothuridae . . . . . .195 



CHAPTER III. 

 Mollusca Gasteropoda Collecting Specimens . . . 253 



CHAPTER IV. 

 Articulata. Entozoa Annelida Crustacea Arachnidae . . 270 



CHAPTER V. 

 Articulata. Insects Acarina ...... 286 



CHAPTER VI, 



Animal Structure. Physiology Histology Cell Theory Growth of 

 Tissues Special Tissues Skin, Cartilage, Teeth, Bone, &c. . 343 



CHAPTER VII. 



Vegetable Structure Vital and Chemical Characteristics The Vege- 

 table Cell Fungi Mosses Algae Volvox Desmidaceae Struc- 

 ture of Plants Fungoid Diseases Adulteration of Articles used 

 for Food Preparation for Microscopic Examination Cutting Sec- 

 tions Warington's Microscope Magnifying Power of the Eye 

 Conclusion ..... . 394 



