CONTENTS 



PAGES 



Remabks to Instructors xiii-xix 



Remarks to the Student xxi-xxxiv 



Phylum Chordata 



The Frog 1-65 



Anatomy and Physiology 1-29 



Related Forms 29 



Histology 29-41 



Reproduction and Development 42-64 



Heredity and Variation 65-68 



Phylum Protozoa 



The Amoeba 69-71 



The Euglena 71-73 



The Paramecium 73-77 



Other Non-colonial Protozoa 77-80 



Colonial Protozoa 80-82 



Phylum Porifera 



The Grantia 83-85 



Other Sponges 85 



Phylum Ccelenterata 



The Hydra 86-90 



The Hydroids and Hydromedusae 90-93 



Other Coelenterates 94 



Phylum Platyhelminthes 



The Planarian 95-99 



The Flukeworm 99 



The Tapeworm 99-103 



Phylum Nematoda 



The Ascaris 104-107 



Other Nematodes 107 



Phylum Annelida 



The Earthworm 108-118 



Other Annelids 118-119 



xi 



