wife; for that Vegetables will heat and take fire of them- 
felves, as in the freqiTent inftance ot Wett Hay ; and A- 
nimals are naturally on fire, and man doth then fufficient- 
ly demonftrate it, when in a Feavour : But amongft Mi- 
nerals, the Pyrites, both in Grofs and in Vapour, is actual- 
ly of its own accord fired. Dr. Power has recorded at 
large in his Micrographia^ a famous inftance of it; and 
the like not very rarely happens. And that damps natu- 
rally fire of themfelves,we have the general Tefliimony of 
Miners, and the fame Author. ^ 
Again theVulcano's all the World over, argue as muchs 
for we, with great probability beleive them to be Moun- 
tains made up in great part of Pyrites, by the quantities 
of Sulphur thence fubhmed, and the Application of the 
Load-ftone to the ejected Cinder. I go further. 
That thefe Vulcano's were naturally kindled of them- 
felves, at or near the Creation is probable, becaufe there 
is but a certain known number of them, which have all 
continued burning beyond the Memoirs of any Hiftorie, 
few or none of them that I know of, have ever totally 
decay'd or beenextindl, unlefs poffibly by the fubmerfi- 
on of the whole, being abforpt in the Sea. Though 
they indeed, do burn riiore fiercely fometimes then at 
others for other reafons. So that it feems to me as natu- 
ral to have actual fire in the Terreftial World from the 
Creation, as to have Sea and Water. 
Again if thefe Vulcano's did not kindle of themfelves, 
whatcaufe can we imagine to have done it; If the Sun 
we anfwer, Hecla placed in fb extream cold a Climat 
was kindled for ought I can fee by the Natural Hiftory o 
both, as foon as ^tna, or Fuegos, or the nxoft'Southerlie. 
Not the Accidents hapning from man ; for, if m.an wa 
^ as we muft believe) created Solitary and Topical, they 
were none of his kindling, becaufe they feem to be fire" 
aPower Microg, p, 6i. b Id. p. i8 r. 
be 
