[ 429 ] 
greateft probable denfity of light upon the fun’s 
furface does not amount to 173d part of the 
denfity of common water. Therefore the diameter 
of each fpherule does not exceed -J-^th, or more 
accurately, T 1 T °^L < ^. th, of one millionth of one 
millionth of an inch ; and is probably flill lefs B . 
More than 95100 fpherules of this fize go 
to make up one of the fize firft alfumed. 
Therefore, though the fun fhould lofe as much 
* Inftant. Product. p. 38 — 41, 
matter 
