xl CONTENTS. 



SECTION IV 



The Muscular Sense. 



PAOK 



§ 659. We possess a sense of ' movement,' of ' position,' and of 'effort' . 1059 



§ 660. The muscular sense distinguished from the sense of effort . . 1060 

 § 601. The afferent impulses forming the basis of the muscular sense are 



distinct from cutaneous impulses 1061 



§ 662. They are derived from the muscles, ligaments, and tendons . . 1063 



SECTION V. 



On Tactile Perceptions and Judgments. 



§ 663. The ties between touch and the muscular sense .... 1066 



§ 664. The ties between touch and sight 1067 



§ 665. Cutaneous sensations may arise otherwise than from cutaneous 



events 1068 



§ 666. Tactile Illusions 1069 



CHAPTER VII. 

 On Some Special Muscular Mechanisms. 



SECTION I. 



The Voice. 



§ 667. The laryngoscopic view of the larynx 1070 



§ 668. The fundamental features of the voice ; loudness, pitch, and 

 quality. The main conditions of the utterance of voice ; 

 adduction and tightening of the vocal cords .... 1074 



§ 069. The muscles of the larynx 1076 



$ 670. The action of the muscles in reference to narrowing and widening 



the glottis and to tightening and slackening the vocal cords . 1080 

 § 671. The nervous mechanisms of the larynx. The respiratory move- 

 ments of the larynx 1081 



§ 672. The nervous mechanism of phonation 1084 



§ 673. The cortical area for movements of the larynx .... 1084 

 § 674. The different kinds of voice. Changes in the glottis other than 



those of mere adduction and general tension .... 1085 

 § 675. Chest-voice and head- voice. The registers of the voice. The com- 

 plexity of the laryngeal movements 1087 



§ 076. The uses of the ventricles and other parts of the larynx . . 1001 

 § 677. The 'break' in the voice at puberty 1091 



