CONTENTS 



I'AOK 



Preface v 



Contents of Sections in Vol. I xiii 



List of Illustrations in Vol. I. xix 



Table of the Classification of the Animal Kingdom . . . xxxv 

 Introduction 1 



SECTION I 



The General Structure and Physiology of Animals . 



1. Amoeba .. 



2. The Animal Cell 



3. The Ovum : Maturation, Impregnation, and Segmentation : the 



Germinal Layers 



4. Tissues 



5. Organs ..... 



6. The Reproduction of Animals 



7. Symmetry .'.... 



8. The Primary Subdivisions or Phyla of the Animal Kingdom 



10 

 10 

 14 



19 

 23 

 31 

 40 

 41 

 43 



SECTION II 



Phylum Protozoa ... 

 Class I. Rhizopoda . . . . 



1. Example of the Class — Amoeba proteus 



2. Classification and General Organisation 

 Systematic Position of the Example 

 Appendix to the Rhizopoda 



Class II. Mycetozoa 



1. Example of the Class — Didymium difforme 



2. General Remarks 



Class III. Mastigophora .... 



1. Example of the Class — Englena viridis 



2. Classification and General Organisation 

 Systematic Position of the Example 



Class IV. Sporozoa 



1. Example of the Class — Monocystis agilis 



2. Classification and General Organisation 

 Systematic Position of the Example 



45 

 46 

 46 



47 

 48 

 04 



<;<; 

 oo 

 67 

 67 

 67 



('»!• 



70 

 so 

 80 

 81 

 82 



