(4^4) 
H^^ proceeds to explain, that the nioft violent of Fius \sm 
other than this Fcrme^tatio/^t in the nioft rapid manner , the faid 
Principles furioiifly driving up each other ; alledging, for the e- 
videncing hereof, the Experimentof taking of Spirit of Venice 
turpentine four ounces, and of jiqm-fortM fix ounces , both re- 
cently drawn, which, beingniixciogether inaGlafs-viol 3 will 
prefently fall into a furious fermentation, arifing to that height, 
asadually , among the thick fumes, to burn and blaze out of 
and above the outfide of the Glafs in a vifible flame. And 
thus hewou'd have all aSlual FUgmh^s ^ whether from the 
violent afTauliS of fiery Acido-fulphureous Liquors (as in the 
newly recited Experiment) ovixom Acids zx\A Sulfhurs^ fet in- 
to intelline conflifts in combuftible concretes , ( as in all ufual 
fire^ ) to be no other than his defcribed Fermentation in a 
moft violent hurry, the principles a6ing furiouQy upon each 
other ; whilft other /J^rrfr fires z\g maintained by flighcer and 
mor§ gentle touches of the fame principles. 
Andastothofe Fermentations, that arc faid to be made be- 
twixt Acids and all kinds of Alcalfs ^ whether lixivia! or al- 
califate, fixtor volatile 5 the heat alfo caufed from the attri- 
tion or collifion of folid and hard bodies ; our Author is of 
opinion, that thofe fermentations -are referrable to his prin- 
ciples, and that upon a double account ; either, that Acids, 
when mixed with thefe Alcaly's, do meet with the iiul^hur clofe 
bound up with the ^^/W and Urinous fpjritor Salt in the com- 
fages of the Alcali, and fo caufe an ebullition; or that they' 
meet with the volatile urinous Sale clofe riveted with the Sul- 
phur and acid , and fo caufe an effervefcence» Where yet he 
fhews the difference, that is to be noted in the Fermentations 
made between Acids and Sulphurs as they happen in Petrifick 
concretions and fixt Lixivial Alcaly's , from thofe that happen 
in the general courfe of Nature, among Animals, Vegetables 
and Minerals. To which he adds an account of the fermenta- 
tion in ^«/^-/^//Vjv^ upon the effufion of water, and how that 
the acidum in that fubfiance ows its original to noottier than 
that of the Fire, contrafted inthe calcination of the (tone, and 
was not praeexiftent hfire calcination. To which power of 
the in Quick-lime, communicated thereto by Fire in the 
calcination, cur Author imputes it, that the Water of Lime 
will 
