CONTENTS. XI 



PAGE 

 The Mucous Membrane .... . .72 



Nerves .......... 83 



Vessels .......... 83 



Bibliography ....... .84 



III. 



THE MEMBRANOUS LABYRINTH. 

 BY PROF. DR. RUDINGER. 



Topographical Description 85 



Ligamenta Labyrinthi . . . . . , 88 



Wall of the Labyrinth 94 



Membranous Labyrinth of Birds . . . . . .100 



of Fish 102 



,, ,, of Batrachia ..... 106 



Vessels 107 



Nerves and Epithelium ........ 108 



Aquaeductus Vestibuli 120 



Canalis Reuniens ......... 121 



Otoliths 121 



Fenestra Ovalis and Articulation of the Stapes . . . .123 



Bibliography 128 



IV. 



THE AUDITORY NERVE AND COCHLEA. 

 BY W. WALDEYER, 



Comparative Anatomy and Development .... 131 



Osseous Capsule and Membrana Propria of the Ductus Cochlearis 140 

 Crista Spiralis ......... 145 



Organ of Corti 151 



Auditory Nerve, and its Relations to the Organ of Corti . .168 

 Cochlea of Birds and Amphibia . . . . . .180 



Comparative Anatomy and Phsyiology 182 



Comparison between the Organ of Corti and the Retina . .184 



