CONTENTS 



Pbeface V 



List of Illustrations in Vol. I. xix 



Table of the Classification of the Animal KiNGD0:\r . . xxxv 



Inteodi^ctiox . . .1 



SECTION I 



The General Structure and Physiology of Animals . . . 10 



1. Amoeba . . . . . 10 



2. The Animal Cell . .... .14 



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



Germinal Layer.? . .... . . 19 



4. Tissues . . 23 



5. Organs 31 



6. The Reproduction of Animals . . 40 



7. Symmetry . . ... . .41 



8. The Primary Subdivisions or Phyla of the Animal Kingdom 43 



SECTION II 



Phylum Protozoa . .45 



Class I. Ehizopoda 46 



1. Example of the Class — Amosha proteus 46 



Systematic Position of the Example 47 



Appendix to the Rhizopoda ... 64 



Class II. Mycetozoa, ..... 66 



1. Example of the Clas.s — Didyminm difforme . 66 



2. General Remarks ... . .67 

 Class III. Mastigophora .... 67 



1. Example of the Class — Euglena viridis . 67 



2. Classification and General Organisation . . ,69 

 Systematic Position of the Example . 70 



Class IV. Sporozoa 80 



1. Example of the Class — Monocystis agilis . . . .80 



2. Classification and General Organisation . . . .81 

 Systematic Position of the Example . . . . 82 



