SQO.% 



CONTENTS. 



PAOB 



INTRODUCTION, 1 



PART I. 



Iftfe, in xh Catoer Jfarma. 



CHAPTER I. 



Infusoria, . 9 



CHAPTER II. 



Infusoria— Continued, . ... . .... 17 



CHAPTER- W. 



Porifera (Sponges), ....... 25 



CHAPTER IV. 



Porifera (Sponges) — Continued, . . . « 89 



CHAPTER V. 



Polypifera (Polypes), . 49 



CHAPTER VI. 



Polypifera (Polypes) — Continued, , , 68 



