TABLE OF CONTENTS. 



CnAPTEK v. —Apparatus of Hearing ..... 



Article i. — Internal Ear, or Labyrinth ..... 



Bony Labyrinth ...... 



1. The Vestibule .....•• 



2. The Semicircular Canals ..... 



3. The Cochlea ...... 



The Membranous Labyrinth . . . . • 



1. Tlie Membranous Vestibule 



2. The Membranous Semicircular Canals . 



3. The Membranous Cochlea ...... 



Liquids of tlie Labyrinlh ....•■ 



Distribution and Termination of the Auditory Nerve in the Membranous 



Labyrinth ......•• 



Article ii. — Middle Ear, or Case of the Tympanum 



1. Membrane of the Tympanum ..... 



2. The Promontory, Fenestra Ovalis, Fenestra Eotunda 



3. The Mastoid Cells ....... 



4. Chain of Bones of the Middle Ear 



5. Mucous Membrane of the Tympanic Case 



6. Eustachian Tube 



7. Guttural Pouches . 

 Article iii. — The External Ear 



External Auditory Canal 

 The Concha, or Pavilion 



1. Cartilaginous Basis of the Concha . 



2. Muscles of the External Ear 



3. Adipose Cushion of the External Ear 



4. Integuments of the External Ear 

 Diiferential Characters in the Auditory Apparatus of other than Soliped 



Animals ........ 



■Compari&on of the Auditory Apparatus of Man with that of Animals . 



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BOOK VIII. 



GENBEATrVE APPAKATTTS. 



•Chaptek I. — Genital Organs of the Male .... 

 The Testicles, or Secretory Organs of the Semen . 



1. Description of the Vaginal Slieath 



2. Description of the Testicles . 

 Excretory Apparatus for the Semen .... 



1. The Epididymis and Deferent Duct 



2. The Vesiculse Seminales and Ejaculatory Ducts 



3. The Urethra ... 



4. The Glands Annexed to the Urethral Canal 



5. The Corpus Cavernosum .... 



6. The Penis ...... 



Differential Characters in the Male Genital Organs of other than 



Mammals ...... 



Comparison of the Genital Organs of Man with those of Animals 

 Chapter II. — Genital Organs of the Female 



1. The Ovaries ....... 



2. The Uterine Cornua, Fallopian Tubes, or Oviducts 



3. The Uterus ..... 



Soliped 



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