432 Sticcejjrve Affectation. [Book X, 



-rioufly ihadowed. But being accuftomed to perceive 

 what kind of appearances convex bodies are wont to 

 make in us j the judgment alters the appearances into 

 their caufes ; and from that variety of Ihadbw or colour, 

 frames to itfelf the perception of a convex figure of one 

 Uniform colour." A man who reads or hears with 

 attention, takes little notice of the characters or founds, 

 but of the ideas that are excited in him by them. 

 Thus we find the intermediate, affociating ideas are 

 dropped, and the more remote caufes immediately con- 

 nected with the -effects. In the inftance of the globe, 

 the firft complex idea prefented, is that of a circle 

 aflpciated with certain fhades of colour ; on approach- 

 ing and examining it by the touch, we find that this 

 is really a convex figure and of a felf-colour, we there- 

 fore aflbciate the ideas of the convexity and colour with 

 the former idea of the circle fo lhadowed, and the one 

 occurs not alone, but always accompanied with the 

 other, and fo immediately, that we feel it as if it 

 ,had been from fynchronous impreflions. The affo- 

 ciat'ion foon becomes fo flrong that we are liable 

 to be . deceived by it, for when we fee objects well 

 painted on canvas we can fcarcely conceive that they 

 are reprefeated by different fhades on a flat furface, and 

 a child very naturally employs his feeling in order to 

 fatisfy himfelf. It is unneceffary to multiply instances ; 

 it is obvious that the fight of blood never fails to alarm 

 the mind inftantaneoufly, though no more productive 

 f>f fear or horror from its natural properties than any 

 other fluid. " Painters, ftatnaries, anatomifts, archi- 

 tects, fee at once what is intended by a draught, pic- 

 ture, &c*." Something like this occurs in moral 

 propofitioris, as, " intemperance is productive of ill 



* Hanky oa Man, prop. 23. * 



health,"- 



