TABLE OF CONTENTS 



PACK 



LIST OF FIGURES- 



INTRODUCTION AND CHAPTER I 



Introduction . 



A. Historical Review 



B. Modern Classification of the Protozoa 



Mil 



I 



5 

 S 



C. Animals and Plants ............ 22 



D. Generation de novo 26 



CHAPTER II 

 GENERAL SKETCH 



A. General Morphology ............ 34 



. i. The Endoplasm 34 



2. The Ectoplasm . . . . 38 



3. Nuclei 40 



4. Organs of Locomotion ........... 43 



B. General Physiology '..... 46 



1. Nutrition 48 



2. Excretion ............. 52 



3. Reproduction . 54 



4. Irritability 60 



C. Some Economic Aspects of the Protozoa 62 



CHAPTER III 

 THE SARCODINA 



A. Shells and Tests 71 



B. Pseudopodia .............. 79 



C. The Nucleus 86 



D. The Contractile Vacuole 87 



E. Encystment .............. 90 



F. Nutrition 90 



G. Reproduction ............. 92 



H. Inter-relationships of the Sarcodina . . ..... . .99 



Classification 105 



8S190 



