PHYSICAL anv LITERARY. 75 
Quer. IX, Wuart elfe is the inflexion 
of light towards the fine edges of bodies 
than a particular cafe of refraction, in 
which the rays, after being bent by the 
attractive power, are carried beyond the 
refracting furface, and mifs entering it, 
- becaufe of its {mall extent? For, if the 
furface of the edge be produced, it will 
meet the inflected rays ; and thus the in~ 
flexion will become properly refraction, 
And, in like manner, we may confider the 
inflexion of light off from the edges of 
bodies as a fpecies of reflexion. 
Quer. X. Is it not impoffible that an 
animal can fee, if the diameter of its eye 
be much lefs than the interval between 
the fits of tranfmiffion and reflexion in 
ater, that is, than 5;!5,5" of an 
inch? 
Quer. XI. THERE are many experi- 
ments which fhew that a yellow and blue 
ray mixed, make a green one; a yellow 
and blue powder, a green powder; and a 
| mixture of rays or paints of all the prif- 
- matic colours, a white ray or paint: Now, 
do not the fame experiments equally de- 
montftrate, 
