( »i8 ) 
and dies, unkfe he be thrown into a neighbouring Pond 
of Water which is thought to be the Antidote. The 
Doftor tried a Dog and Pigeons in the lame Cavern, 
and found, if their Heads were kept for fomc time be- 
low a Line of a greenilh Colour tea inches high from the 
bottom of the Grvt to, ihait tbcy died; but if above that 
greenilh Line, they lived : or if after being held there, 
they were not put into the Water, but only breathed 
in thefrefli Air,thcy recovered. The Creatures fo dying, 
people here eat without mifchief. The Air tried with 
Scales, made no alteration in the BalJance. 
People at Naples report the kilUng of a Captive 
Turk there, others Buffaloes, Afles, Mules, Sheep and 
other Creatures, fo that no body can doubt of its being 
deadly. But they differ as to the reafan of it, fome 
afcribe it to miracles,from the Martyrs Blood flbed there; 
others to an AciJ Fapour^ others to an Alkalin ; con- 
trary to that, the Author thinks Mercury and Antimo- 
ny rather friendly than hurtful to Nature, being given 
every day with fuccefe by Phyfitians, and obferves no 
ulcerous di^fition in the Bodies of Animals killed there : 
neither (ees he in the fame the Blood more coagulated 
than in one killed out of the Cavern. Tke Keeper eats 
thofe thus killed like others, fo that 'tis likely there is no 
poyfon in them ; the Author runs thro' the Nature of 
all forts of poyfons, and concludes it not to come from 
any of them, but from jEther coming from the fides 
of the Cavern, not rifing higher, but taking away its 
Elaftick Power ; he tells us, that tho' a Candle will not 
burn below the green Line, yet Gunpowder laid in a 
Train to the fartheft part of the Cavern, and fired at 
the Mouth, will flame to the end: The Author thinks 
that Objeftion of its being deadly for want of Nitrous 
Particles, of no force for that Nitre has little volatile 
in it, and that its Spirit and Self mixt with the Bfood, 
coagulates, rather than makes it fluid; and that the 
thou- 
