CONTENTS 



Paoe 



Preface v 



Introduction xiii 



CHAPTER I 



The Major Groups and Distribution of Animal Para- 

 sites as Illustrated by the Animal Parasites 

 of the Frog 1 



CHAPTER II 

 The Morphology of the Trematoda, or Flukes .... 9 



CHAPTER III 

 The Life Cycle of a Typical Trematode 14 



CHAPTER IV 



The Structure and Life History of a Tapeworm, 



Tcenia Pisiformis (Bloch 1780) 19 



CHAPTER V 

 Comparative Study of Some Important Cestodes. ... 26 



CHAPTER VI 

 A scaris Lumbricoides as a Type of the Nematoda .... 33 



CHAPTER VII 

 The Hookworms of Man and Animals 39 



CHAPTER VIII 

 Trichinella Spiralis and Related Forms 43 



CHAPTER IX 



The Determination of Helminth Infections through 



Fecal Examinations 47 



ix 



