VI CONTENTS 



CHAPTER III. 



Structural Differentiations. 



1. Differentiations of the Cortex 127 



(a) Cortical Differentiations for Support and Protection .... 128 



(b) Motile Organoids 132 



1. FlageUa 134 



2. Pseudopodia 140 



3. CiUa 144 



4. Composite Motile Organs 147 



(c) Other Organoids Adapted for Food-getting 153 



(d) Oral and Anal Cortical Modifications 155 



(e) Contractile Vacuoles 161 



Special Bibliography 163 



CHAPTER IV. 



General Physiology. 



Life, Organization, and Vitality 164 



Functional Activities of the Individual 167 



A. Excretion of ^Metabolic Waste 168 



B. Irritability 171 



C. Nutrition 175 



1. Food-getting 176 



2. Products of Assimilation 201 



Special Bibliography 201 



CHAPTER V. 



Reproduction. 



General Reproduction; All Reproduction Cell Division 203 



I. Equal Division and Evidence of Reorganization 208 



A. Division and Reorganization in Mastigophora .... 209 



B. Division and Reorganization in the Sarcodina .... 213 



C. Division and Reorganization in Infusoria 217 



(a) Evidence of Nuclear Reorganization 218 



(b) Evidence of Cytoplasmic Reorganization .... '223 



II. Unequal Division (Budding or Gemmation) 227 



A. Exogenous Budding 227 



B. Endogenous Budding 231 



III. Multiple Division (Spore-formation) 236 



IV. Development 245 



Special Bibliography 247 



CHAPTER VI. 



Special Morphology and Taxonomy of the Mastigophora. 



Classification of the Phylum Protozoa 248 



Sub-phylum Mastigophora, Diesing 250 



Class I. Phytomastigoda, Dofiein 253 



Amoeboid and Metabolic Types 254 



Flagella 254 



