CONTENTS. ]'x 



CHAPTER XV. 



PAGE 



NUTRITION : THE INCOME AND EXPENDITURE OF THE HUMAN BODY, . 432 

 Nitrogenous Equilibrium and Formation of Fat, .... 435 



CHAPTER XVI. 

 THE VOICE AND SPEECH, ....... 437 



CHAPTER XVII. 



THE NERVOUS SYSTEM, . . . . . . . .450 



Elementary Structures of the Nervous System, .... 450 



Functions of Nerve Fibres, . . . . . . .456 



Laws of Conduction in Nerve Fibres, . . . . . 458 



Functions of Nerve Centres, . . . . . . .465 



CHAPTER XVIII. 



CEREBRO-SPINAL NERVOUS SYSTEM, . . . . . . . 472 



The Spinal Cord and its Nerves, . . . . . .472 



Functions of the Spinal Cord, ...... 481 



The Medulla Oblongata, . . . . . . . 491 



Structure and Distribution of the Fibres of the Medulla Oblangata, . 491 

 Functions of the Medulla Oblongata, ...... 495 



PonsVarolii, ........ 499 



Crura Cerebri, . . . . . . . . .499 



Corpora Quadrigemma, ....... 500 



THE CEREBRUM, ......... 502 



Structure of the Cerebrum, ...... 503 



Functions of the Cerebrum, . . . . . . .511 



The Cerebellum, ........ 524 



Structure and Functions of the Cerebellum, ..... 524 



CHAPTER XIX. 



PHYSIOLOGY OF THE CRANIAL NERVES, ..... 530 



CHAPTER XX. 



THE SENSES, ......... 546 



THE SENSE OF TOUCH, . . . . . . . 550 



THE SENSE OF TASTE, ....... 556 



THE SENSE OF SMELL, ... . . 56;i 



THE SENSE OF HEARING, . .... 567 



THE SENSE OF SIGHT, . . ..... 584 



CHAPTER XXI. 



THE SYMPATHETIC NERVOUS SYSTEM, ...... 625 



