[ 4-’2 1 
And therefore, if there were no other ‘recruit of the 
fun’s fubflance (which is by no means a probable 
fuppofition) yet the continual wafle will, on this 
account alone, be lefs than the continual emiffion ; 
and the fun cannot lofe fo much of his fubflance as 
a {ingle emiffion of light contains, but in fome de- 
terminate time. I (hall fuppofe that the fun gives 
fo much more than he receives, that he lofes 
the amount of one cmifiion 'in every fecond of an 
hour. Let us fee what will be the confequence. 
Every particle of light that iffues from the fun, mu ft 
leave a fpherical vacuity of one millionth of one 
millionth of an inch diameter. 
The greateft number of particles of this fize that 
can iflue from the furface of the fun at once, if the 
horizontal parallax' be 9", is 104666 xli c , becaufe 
this is the greateft number of fuch particles that 
would have room to lie at once upon his furface. 
And the fame will be the greateft number of fpheri- 
cal vacuities made by one emidion. 
Many of thefe vacuities are no fooner made, than 
they are filled up by the light that is coming to the 
fun from other fyflems, or returning to him from 
the bodies of his own, or, perhaps with other matter 
which he may receive in various emanations from the 
planets ; for I ftrongly fufpe£t that a perpetual circu- 
lation of finer matter may fubfift between all the 
large bodies of the univerfe. The emiffion of light, 
however, is fuppofed fo far to exceed the whole 
e The greateft number of particles that can iffue from the 
fun at once, was reckoned in the Inftant. Product. 132467x11; 
l>ut then the O ’s parallax was reckoned only 8". 
2 fupply, 
