2 79 



And therefore, though both be feen under 

 the fame Angle, they do not appear (to the 

 Imagination) of the fame bignefs, becaufe 

 not both fanned at the fame Diftances : But 

 that near the Horizon is judged bigger (be- 

 caufe fuppofed farther off ) than the fame 

 when at a greater Altitude. 



? Tis true, that as to fmall and middling 

 Diftances (befides this Eftimate from Inter- 

 mediates) the Eye hath a means within it felf 

 to make fome Eftimate of the Diftance. As, 

 when we already know the bignefs of a thing 

 feen, to which we have been accuftomed ; as 

 a Man, a Tree, a Houfe or the like : If fuch 

 thing appear to us under a fmall Angle, and 

 indiftinft, and faintly coloured } the Imagi- 

 nation doth allow fuch Diftance, as to make 

 fuch a thing fo to appear. And, if this, thro' 

 a Profpe&ive Glafs, be repefented to us un- 

 der a bigger Angle, and more diftindl : It is 

 accordingly apprehended as fo much nearer. 



But the cafe is otherwife, when we do not 

 by the known bignefs, judge the Diftance \ 

 but, by the fuppofed Diftance, judge of the 

 bignefs ; as in the Cafe before us. 



And accordingly, different Perfons, accord- 

 ing to different fancied Diftances, judge ve- 

 ry differently. As, if two Stars be ftiewed 

 to ignorant Perfons, and you ask how far they 

 feem to be afunder : one perhaps will fay a 

 Foot ; another a Yard, or more : And one 

 fball fay, the Sun appears to him as big as a 

 Bufhel ; another, as big as a Holland Cheefe : 

 Each eft imating according to the fancied Di- 

 ftance. 



T 4 



Again 



i 



