11.9 



seeing acquires all its perceptions of hard, 

 soft, rough, smooth, Sec. from that of feel- 

 ing, such a sympathy seems almost un- 

 avoidable. Rough and rugged objects, 

 especially such as are sharp and pointed, 

 are found at a very early age to give pain 

 and irritation, when imprudently touched 

 or applied to the body § thence the eye 

 icarns to distinguish the visible appearance 

 of such objects, and to connect it with 

 the ideas that had been impressed by means 

 of the sense of feeling. No one, it is true, 

 can recollect when the first impression was 

 made, or when the process commenced, 

 by which the sight began to have a per- 

 ception of qualities, which can alone ex- 

 cite a sensation by means of another sense; 

 but the impression, in itself a strong and 

 lasting one, is frequently renewed. The 

 opposite impressions of pleasure, ease, and 

 repose, from smooth objects, are made 

 and renewed in the same manner, and the 

 same sort of connection established* Thus 

 a gently sloping bank of soft and smooth 

 turf, must, I imagine, suggest the idea of. 



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