CONTENTS 
IX 
CHAPTER XVI.— The Lowest Animals,— Subkingdom Protozoa. 
Characteristics of Protozoans—The Root-Footed Group (Class Rhizopoda) —The Amsebas 
(Order Lobosa ) — Order Foraminifera — Sun-Animalcules (Order Heliozoa ) — Order 
Radiolaria —The Infusorial Animalcules (Class Infusoria) — Flagellated Infusorians 
(Order Flagellata)— Ciliated Infusorians (Order Ciliata), . 
Index ........ 
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550 
569 
