X TABLE OF CONTENTS. 



CHAPTER. p AGE . 



VI. OF THE CIRCULATION or THE BLOOD ..... 304 



1. Nature and Objects of the Circulation of Nutrient Fluid . . 304 



2. Different forms of the Circulating Apparatus . . . 305 



3. Action of the Heart . .... 320 

 ' 4. Movement of the Blood in the Arteries .... 327 



5. Movement of the Blood in the Capillaries .... 331 



6. Movement of Blood in the Veins .... 339 



VII. OP NUTRITION ........ 343 



1. Selecting Power of Individual Parts .... 343 



2. Varying Activity of the Nutritive Processes . . . 345 



3. Of Death, or Cessation of Nutrition .... 350 



4. Disordered Conditions of the Nutritive Processes . . . 352 



VIII. OF RESPIRATION . . . . . . 357 



1. Essential Nature and Conditions of the Respiratory Process . 357 



2. Different forms of the Respiratory apparatus in the lower Animals 363 



3. Mechanism of Respiration in Mammalia, and in Man . . 375 



4. Chemical Phenomena of Respiration . 382 



5. Effects of Insufficiency, or Suspension, of the Aerating Process 389 



IX. OF SECRETION . . . . . . . . 393 



1. Of the Secreting process in general, and of the Instruments by 



which it is effected . . . . . .393 



2. Of the Liver and the Bile ..... 400 



3. Of the Kidneys, and the Urine . . . . .406 



4. Of the Cutaneous and Intestinal Glandulge . . . 416 



5. General Summary of the Excreting Processes % . . 422 



X. OF THE DEVELOPMENT OF LIGHT, HEAT, AND ELECTRICITY, IN THE ANIMAL 



BODY .... 425 



XL GENERATION AND DEVELOPMENT .... . 434 



1. General View of the Nature of the Process ... 434 



2. Action of the Male . . . . . . .442 



3. Action of the Female ...... 445 



XII. OF THE NERVOUS SYSTEM ....... 473 



1. General view of the operations, of which the Nervous System is 



the Instrument ...... 473 



2. Comparative Structure and Actions of the Nervous System . 479 



3. Functions of the Spinal Cord and its Nerves . . . 496 



4. Functions of the Medulla Oblongata .... 504 



5. Functions of the Sensory Ganglia .... 508 



6. Functions of the Cerebellum . . . . . 514 

 9. Functions of the Cerebrum . . . . . 516 

 8. Functions of the Sympathetic System .... 527 



XIII. OF SENSATION, GENERAL AND SPECIAL . . 529 



1. Of Sensation in general . ... 529 



2. Of the Sense of Touch . . ' . . . . 534 



3. Of the Sense of Taste . . . 536 



4. Of the Sense of Smell . ... 538 



5. Of the Sense of Hearing . ... 540 



6. Of the Sense of Sight . 544 



XIV. OF THE VOICE AND SPEECH . 553 



