44 Size of QhjeBs. 
Third Sort, 3. whofe Diameter is lefs that! 
that of the fecond Sort 
10 Times. 
10 
100 
10 
1000 in one of the fecond Sort. 
1728 of the firit Sort in aGr. ofSand* 
64 of the 2d Sort in 1 of the hrfh 
1 1 if . A 
6912 
IO368 
IIO >59 2 . 
100O of the 3d Sort in 1 of the 2d* 
110,592,000 of the 3d Sort in a Gr. of Sand* 
After this Manner the comparative Size 
of all Sorts of Objects may very eaiily be 
computed, only fubftituting (for fuch as are 
lefs minute) a fmall Seed, or fome other 
Body whofe Size we are well acquainted 
with, in the room of a Grain of Sand. 
And, particularly, by the Solar Microfcope, 
our Calculations may be made with great 
Certainty j fmce the Image of the Ohjedt 
5 enquired 
