CONTENTS. 



XI 



The Hedgehog's Skull, . 

 Skull of Cartilaginous Fishes, . 

 Ear-dium of Hedgehog, 

 Parts of the Palate and Ear in 

 Hedgehog's Skull, 



Page 



137 

 138 

 139 



140 



Arches of the Face, . 

 Primitive Types of Maninialia, 

 Bibliography, . 

 Fossil Horses, . 

 Extinct Mammals, . 



Page 

 141 

 142 

 143 

 144 

 145 



LECTUEE YI. 



Insectivora — continued. 



The Mole very Archaic, 

 Greediness of the Mole, 

 Blind, but Quick of Hearing, 

 Development of the Mole, 

 Pecords of Lost Types, 

 An Hereditary Agriculturist, 

 The Formation of the Tissues oi 



the JMole, 

 A Dry Skull, . 

 Air-Galleries of the Ear, . 

 Labyrinth of the Ear, 



LECTURE YII. 



Tnsectivora — concluded. 



Foreign Tnsectivora, . 



^Mascarene Types, 



Skull of the Tenrec, . 



Nasal Labyrinth of the Tenrec, 



Lesser Kinds of the Centetidffl, 



Crested Skull of the Tenrec, 



Wallace's Line, 



A Complete Orbital Ring, 



The Young Colugo, 



A Puzzling Type, 



A Tertiary Bat, 



Comb-like Teeth of Colugo, 



The Colugo and the larger Bats, 

 The Basi-Cranial Beam, 

 Relations of Air - Breathing 



Types, .... 

 Old Remnants in New Types, 

 The Rhynchocyon, . 

 A Proboscidean Insectivore, 

 Marsupial Characters, 

 Working out old Strains, . 

 Bibliography of Insectivora, 

 New Insectivora, 



LECTURE VIIL 



The Remaining Orders of Mammalia, 



The Chiroptera, 

 A Long-fingered Animal, , 

 Evolution of a Flying Animal, 

 An Unfolded Bat, 

 The Rodentia, . 

 Voyage of a Naturalist, 

 Skull of a Guinea-Pig, 

 Lemurs and Aye-aye, 



