X TABLE OF CONTENTS 



, 

 CHAPTER IV 



THE MASTIGOPHORA 



PAGE 



A. Protoplasmic Structure . . . . 113 



B. The Flagella 119 



C. The Nucleus 124 



D. Food-taking 125 



E. Vacuoles 127 



F. Reproduction 127 



G. Inter-relationships of the Mastigophora 135 



Classification 136 



CHAPTER V 

 THE SPOROZOA 



A. Protoplasmic Structure 142 



B. The Nucleus 146 



C. Food-taking 146 



D. Motion 148 



E. Reproduction 149 



F. Inter-relationships of the Sporozoa 166 



Classification 167 



CHAPTER VI 



THE INFUSORIA 



I. The Ciliata 171 



A. Protoplasmic Structure . .173 



B. Contractile Vacuoles 186 



C. The Nucleus 188 



D. Encystment 192 



E. Reproduction 192 



II. The Suctoria 195 



III. Inter-relations of the Infusoria ........ 199 



Classification 206 



CHAPTER VII 

 SEXUAL PHENOMENA IN THE PROTOZOA 



A. Phenomena of Conjugation . . . .214 



1. The Permanent or Temporary Union of Similar Adult Individuals (Isogamy) 214 



2. The Union of Similar but Different-sized Individuals (Anisogamy) . .221 



3. The Union of Swarm-spores (Isogamy and Anisogamy) .... 224 



4. The Union of Eggs and Spermatozoa ......... 229 



B. The So-called Maturation-phenomena in Protozoa 233 



C. General Considerations 240 



