T9 g REPETITION Sect. XXII. 1. 1. 



SECT. XXII. 



OF PROPENSITY TO MOTION, REPETITION AND IMITATION. 



I. Accumulation of fenforial power in hemiplegia, injleep y in cold fit 

 of fever ; in the locomotive mu fries, in the organs offenfe. Produ- 

 ce's fv )■ to aftion. II. Repetition by three fenforial powers. 

 In rlimes and alliterations, in muftc, dancing, ar chit eel ure, land- 

 [cape-painting, beauty. III. I. Perception confifls in imitation. 

 Four kinds of imitation. 2. Voluntary. Dogs taught to dance. 3. 

 Sen/it ive. Hence fympath y , and all our virtues. Contagious matter 

 ef venereal ulcers, of hydrophobia, of jail-fever, of fmall-pox, produ- 

 ced by imitation, a';d the /ex of the embryon. 4. Irritative imita- 

 i-m. 5. Imitations refolvable into affociations . 



I. 1. In the hemiplegia, when the limbs on one fide have 

 loft, their power of voluntary motion, the patient is for many 

 days perpetually employed in moving thofe of the other. 2. 

 When the voluntary power is fufpended during fleep, there com- 

 ■Knees a ceafelefs flow of fenfitive motions, or ideas of imagin- 

 ation, which compofe our dreams. 3. When in the cold fit of 

 an intermittent fever fome parts of the fyltem have for a time 

 continued torpid, and have thus expended lefs than their ufual . 

 expenditure of fenforial power ; a hot fit fucceeds, with violent 

 action of thofe vefTels, which had previoufly been quiefcent. All 

 thefe are explained from an accumulation of fenforial power 

 during the inactivity of fome part of the fyltem. 



les the very great quantity of fenforial power perpetually 

 produced and expended in moving the arterial, venous, and glan- 

 dular fyftems, with the various organs of digeftion, as defcribed 

 in Section XXXII. 3. 2. there is alio a conftant expenditure of 

 it by the action of our locomotive mufcles and organs of fenfe. 

 Thus the thicknefs of the optic nerves, where they enter the eye, 

 and the great cxpanuon of the nerves of touch beneath the whole 

 the cuticle, evince the great confumption of fenforial power by 

 th lies. -And 01: >etual mufcular actions in the com- 



mon offices of life, . onltantly preu .1 ving the perpendic- 



ularity of our bodies durii j tl day, evince a confidevable ex- 

 penditure of : .irit of animation by our locomotive mufcles. 

 It follows that if the e uns offenfe and muf- 



O 



cles be for a while intermitted, that fome quantity of fenforial 

 p -1 a propensity t'> activity of fom 



kind en fuc from the Lncre em. Whence 



proceeds 



