( 885 ) 
Generation ; or retrogreflive from the fuperScies, as Putre- 
fadion. 
The third is, when the Principles by a p onger and more fen- 
fible collifion hif each others which hediftingulflies into iVi- 
tural diud Artificial ; former^ fuch as is manifefl: among Ve- 
getables in their ripened Joyces, whofe principles ftruggle 
(in our Authors language) with ftronger colUfions : The latter^ 
fuch as is feen in every effervefcence bee ween fadiciousAlcalie^s 
and Acids, 
The/(>«r/Aisthemofl high and rapid motion the Principles 
are capable of,and whence refult^ the ratio formdis oi Culinary 
or common Fire; and by which complication the phasnomena 
belonging to that Fire, may be foived^ 
The fifth is, when the Principles , after they are by the moft 
rapid collifion brought to an ignition, are tranfmitted from 
their own into other bodies, where having penetrated, they are 
by a kind of fixation locked up , and fo become the caufes of 
divers fhtemmena; as it is apparent in the Cakes of Mettals 
made in forma jicca,^% of Lead, Iron,Mercuryj&c. 
The fixth is , when the Principles are complicated by a cer- 
tain colliquation ; thence by our Author called Igms colUqm- 
r/^/i, and by him diftinguiCh'c in eaufiical^Qrrofive^ and Futre- 
fa^tive. The ^rj? again into Lixivial f as the fixt Alcalies 
of Plants, fixt Nitre, C/j/jf-i^/W,) and Veftcatory, as Chymical : 
Oyls,Cantharides, and fome Plants, The (which are the 
Corrofive^ take their original from Mineral principles colli- 
quatedby force of Fire; whence all corrofiveMe^r^^, The 
third, namely the putrefactive^ is made threefold again, FeJU- 
kntial^ Venemou4^ and properlj PutrefaBive : Concerning all 
which, he refers us to his teutamen Fhyfiologicnm^ intended to 
bepubliflied by him* 
The feve^th and laft complication is , when the Principles 
are fixed by an intimate and radical union ; whence arife Fires 
pd ^wri^, which by reafonof the fixity and the infeparable 
connexionof theprincip!es,fuf{er no deflagration of parts, nor 
any injuries by our ftrongeft fire ; fuch as to him are the Fhilo- 
fophical Elixir, the liquor jilkaleft , and the Mercurial Fhilofi- 
fhorum. 
So far his Seven Complications; which whether they are 
confonant to the naiureof things, and comprehenfive enough to 
e^pli- 
