Page 109

ANALYSIS of BEAUTY. 
and diffina, when the fpire would have been loft to 
the view. 
Nor is it fufficient that objeds are of different co- 
lours or fhades, to fhew their diftances from the eye, if 
one does not in part hide or lay over the other, as in 
fig. 86. 
For as fig. - the two equal balls, tho' one were black  * Fig. 9. 
and the other white, placed on the feparate walls, fup- T. px 
pofed diftant from each other twenty or thirty feet, ne- 
verthelefs, may feem both to reft upon one, if the tops 
of the walls are level with the eye; but when one ball 
hides part of the other, as in the fame figure, we begin 
to apprehend they are upon different walls, which is 
determin'd by the perfpeeive-: -hence you will fee the 
reafon, why the fleeple of Bloomfbury-church, in com- 
ing from Hampflead, feems to fiand upon Montague- 
houfe, tho' it is feveral hundred yards diftant from it. 
Since then the oppofition of one prime tint or fhade 
to another, hath fo great a fhare in marking out the re- 
ceflions, or diltances in a profped, by which the eye is 
led onward fitep by fiep, it becomes a principle of con- 
fequence enough to be further difeuffed, with regard to 
the management of it in compofitions of nature, as well 
as art. As to the management of it, when feen only 
i The knowledge of perfpeive is no fmall help to the feting objeffs 
truly, for which purpofe Dr. Brook Taylor's Linear perfpe6tive made 
eafy to thofe who are unacquainted with geometry, propofed to be pub- 
lifh'd foon by Mr. Kirby of Jpfwich, may be of moft fervice. 
from 
log