CONTENTS. 



of Cutaneous Pain Scope of the term " Common Sensation " The Viscera and 

 Common Sensation The Musculo-articular Apparatus and Common Sensation 

 Nature of "Physical Pain" Action of Painful Stimuli Character of the 

 Motor Eeactions provoked The Central Neural Mechanism for Cutaneous 

 p a i n Tickling Dolorous Eeflexes compared with Tactual The Spinal Path 

 of Pain Associated (Eeferred) Pains Interference of Pain with other Sensa- 

 tions The Peripheral Path of Pain " Pain-Spots " in the Skin Pain and 

 Nerves of Muscular Sense Pain and Visceral Nerves Hunger as a Type of 

 Visceral Sensation Evolution of Visceral Pain Cutaneous Pain and Adequate 

 Stimuli Specific End-organs or Undifferentiated Endings The Forms of 

 " Excess " of Stimulus Summation in Production of Pain " Inertia " of the 

 Neural Apparatus of Pain The Brain and Physical Pain . . page 920 



THE MUSCULAE SENSE. 

 BY C. S. SHERRINGTON. 



Definition of " Muscular Sense " Views regarding the nature of Muscular Sense 

 Charles Bell's "Sixth Sense" The Peripheral Apparatus of the Muscular 

 Sense ; Histological Data Nerves of Muscles and Tendons End-Bulbs and 

 Pacinian Corpuscles Hypothesis as to the Mode of Excitation of the Peripheral 

 End-Organs of the Muscular Sense Muscle-Reflexes The Performances of 

 Muscular Sense Perception of Posture Perception of Passive Movement 

 Perception of Active Movement Objective Effects of Loss of Muscular Sense 

 upon " Willed Movement " Subconscious Character of Reactions of Muscular 

 Sense Probable Importance of Tonus for Co-ordination Apsesthesia produces 

 Ataxy of "Willed Movement" Senso-paralysis Perception of Resistance 

 The Liminal Stimulus The Liminal Difference "Adaptation" Interpreta- 

 tion of Results Fusion of Muscular with other Sensations . . page 1002 



VISION. 

 BY W. H. R. RIVERS. 



THE DIOPTRIC SYSTEM Accommodation The Pupil THE RETINA AND VISUAL 

 SENSATIONS Physiological Retinal Processes Visual Sensations Adaptation 

 and Induction The Duration of Stimulus and Sensation The Brightness of 

 Colour Sensations Mixture Vision of Different Regions of the Retina 

 Colour-Blindness, etc. Binocular Phenomena Functions of the Retinal 

 Structures Theories of Colour- Vision BINOCULAR VISION Movements of the 

 Eyes Spatial Perception page 1026 



THE EAR 

 BY JOHN GRAY M'KENDRICK AND ALBERT A. GRAY. 



THE EXTERNAL EAR The Auricle The External Auditory Meatus Movements of 

 the Auricle The MIDDLE EAR The Tension of the Membrana Tympani, and 

 its Regulation Movements of the Membrana Tympani in response to Sound 

 Pressures The Movements of the Malleus The Movements of the Incus 

 The Movements of the Stapes The Tensor Tympani The Stapedius The 

 Movements of the Ossicles as a whole under the Influence of Sound-waves 

 The Magnitude of the Movements of the Ossicles Transmission of Sound to 

 the Labyrinth otherwise than by the Ossicles Regulation of Atmospheric 

 Pressure in the Tympanum Auditory Reflexes Binaural Audition The 

 INTERNAL EAR General Mechanism of Internal Ear The Utricle and Saccule 

 The Cochlea Pitch Beats Beat Tones Audibility as affected by Intensity 

 The Analytic Properties of the Ear Resonance Probable Action of the 

 Cochlea Upper Partial Tones and the Theory of Dissonance Combination 

 Tones Objections to the Theory of Helmholtz Other Theories The Semi- 

 circular Canals . . . . : page 1149 



