46 PHYSIOLOGY. 



body strongly, the uneasy sensations are referred to the toes, 

 &c. and not to the only proper remaining feeling part." 



LXI. The sensations of consciousness (XL. 1, 2.) are refer- 

 red to the encephalon. So are those of XL. 3. if they are mo- 

 derate ; but if more vehement, they are often referred to those 

 parts in which their effects are exerted, as the heart and organs 

 of respiration. The sensations (XL. 4 and 5.) are seldom with 

 accuracy referred to particular parts, but indistinctly to a whole 

 member. We are not conscious of the action of particular mus- 

 cles, except when their contraction is spasmodic. 



LXI I. We are disposed to combine our sensations as united 

 in one object ; and thus form what are called COMPLEX IDEAS. 



LXIII. We compare our several sensations, and from thence 

 acquire new sensations of RELATION. 



LXIV. When sensations, formerly received, are again re- 

 newed by the same objects, it is, for the most part, with a con- 

 sciousness of their having been formerly received ; and this fa- 

 culty We Call REMINISCENCE. 



LXV. Perceptions, formerly received, can be renewed with- 

 out the presence or action of the object which formerly gave oc- 

 casion to them ; and if this is attended with the consciousness 

 of a difference between the vividity of the two perceptions, and 

 particularly of the absence of the original objects, such a re- 

 newed perception is called an IDEA ; and the faculty by which 

 this renewal is made is called MEMORY. 



LXVI. Perceptions, formerly received, can, without the 

 presence of the original object, be renewed also in such a man- 

 ner that the mind does not perceive any difference between the 

 original and the renewed perception ; and, therefore, such re- 

 newal is always attended with the persuasion of the presence of 

 the object. The faculty by which such renewal is made, we 

 call IMAGINATION more strictly. 



LXVI I. Reminiscence depends upon the force or frequent 

 repetition of the former sensation. 



LXVI II. Memory depends upon an association of percep- 

 tions, which is formed by their being frequently repeated im- 

 mediately after each other ; by their being parts of the same 

 complex idea ; and by their having relations marked. Memory 



