[ 4*8 ] 
It has on one Side, a deep Hole^, ( fee Tab. I. 
Fig. 2.) admitting the End of a middle-fiz’d Knitting- 
needle, and on the oppofite Side a deep Depreflion B\ 
which would induce one almoft to think its Form had 
been at firft nearly Spheroidal, form'd by a Revolution 
round a fuppos’d Axis drawn from A to B. It has 
Jteveral other Holes fcattcr’d irregularly up and down 
its whole Surface, fome fit to admit a Hog's Briftle, 
others a Hair 5 as if it had been made of a fine Powder, 
and fome thin Liquid, and after mixing had fuffer'd 
fome Fermentation 5 but thofe Parts of it which are 
folid, feem more compact than thofe of the common 
roll Brimftone of the Shops, and the Powder of it 
burns with a whiter Flame, and lefs acid Fumes. Its 
longeft Diameter is betwixt eight and nine, and its 
fhortefl betwixt fix and feven Tenths of an Inch; its 
Weight is 108 Grains. To fave more Words, I have 
roughly defcribed two Sides, one of which has the Hole 
A , the other the Depreflion B . 
We find frequent Mention in the Defcription of 
Thunder Storms in hot Climates, that there falls often 
a flaming bituminous Matter to the Ground, which 
fometimes burns not to be foon extinguifh’d, but more 
frequently fpatters into an infinite Number of fiery 
Sparks, doing incredible Damage where they ftrike, 
always attended with a fulphureous fuffocating Smell, 
commonly compar’d to that of Gunpowder. 
Whether this fulphureous Ball was intended for one 
of thefe, but by fome Accident mifs’d firing, it is now 
time to confider. 
Had it been form’d in the Earth, how fhould it get 
to the Surface, without lofing that moft elegant frofty 
covering of fine fhining Cryftals, and appear not in the 
leaf! 
