CONTENTS. IX 



PAGE 



CHAPTER XV THE SENSES; I. The Senses of Touch, Pain, Tem- 

 perature, and the Muscle Sense. II. Taste and Smell, The Sense 

 of Taste, The Sense of Smell. III. Hearing and Equilibration, 

 The Anatomy of the Ear, The Physiology of Hearing, The Sense of 

 Equilibrium. IV. The Sense of Sight, The Eye, The Optical 

 Apparatus, Accommodation, Defects in the Optical Apparatus, 

 Visual Sensations from Excitation of the Retina, Color Sensations, 

 Binocular Vision, Visual Judgments, Laboratory Directions for 

 Experiments on the Sense Organs 629 



CHAPTER XVI THE REPRODUCTIVE ORGANS; The Reproductive 

 Organs of the Male, The Reproductive Organs of the Female, 

 Ovulation and Menstruation, Menstrual Life 715 



CHAPTER XVII DEVELOPMENT; Changes which Occur in the 

 Ovum Prior to Impregnation, Changes Following Impregnation, 

 Circulation of Blood in the Fetus, Parturition, Lactation 727 



INDEX 739 



