
Led. I. The Nature of Mixture. 224 
for this, or any one Leure, 1 thall, before I cometo the Caufés of 
Mixture, only deduce from the Premifés , thefe following Corollaries. 
12. §. Firft, That there is no alteration of Principles or of Ele- 
ments,in the moft perfect Mixture of Bodies. It caznot be 5 for Principles 
are Immmtable, as we have faid. And ifit could be, yet it weedeth wot Ch, 2. §. 33 
to be: forthey are’ alfo many, and compoundable infinite ways 5 as 
hath been fhewed. So that we have no need to perplex our felves © 2. $ +54 
with any of thofe difficulties, that arife from the Doérine of the Ch.3. $.105 
Alteration of Elements. The ground of which conceit, is that, of 
three being but four Elements, and all in every particle of the 
mixed Body. And fo men being puzeled, how from thence to make 
out the infinite variety of Bodies, they feigned them to be alterable, 
and altered, upon every perfecf Mixture. Not confidering, that if 
their four Elements be alterable; as few as they are, no fewer then 
three of them may be fpared : for ove Element,if alterable, may belmade 
any. 
13. §, Hence, secondly, may be folved that great Di/pute, Whe- 
ther fuch as we call Lixivial Salts, are made by the fire? For firff, 
No Principle is made by the fire: all Prizciples being wnalterable 5 
and therefore ammakable. secondly, We mult therefore diftinguifh 
betwixt the Principle, and its various Mixture with other Principles 5 
from whence it may receive different Shapes and Names. Wherefore, 
a Lixivial Salt, qua Lixivial, is certainly made by the frre. But qua- 
tewws Salt, itis not: that Privciple being extrattable out of mof? Bo- 
dies; and by divers other ways, then by the frre. For whether you 
Calcize a body, or elfe Ferment it, ( after the manner fhewed by the 
curious Improver of Chimical Knowledg, Dr. Daniel Cox ) ox putrifie 
it under ground, or drown it in the Sea3 it ftill yieldeth fome kind 
of Salt. All which Salts are made, not by making the Saline Princi- 
ples but only by its being differently Atzxed, by thofe feveral ways 
ofthe Solution of Bodies) with other Principles : from which its dif- 
ferent Mixture, it receives the various Denominations, of Marine, Ne 
trons, Volatile, or Lixivial. 
14. §. Hence, Thirdly, the moft perfect Mixture of Bodies, can . 
ge no higher than Conta. For all Principles are gnalterable 3 and all Ch.2. $. 33 
atter is impenetrable 5 as hath been faid. In the moft vifble and laxe Ch. 3. §. 26 
Mixture, there is Contac 5 and inthe nioft fubiéle and perfect, as it Ge- 
aeration it {elf, there is zothing more. 
15. §. Hence, Fourthly, we eafily underftand, how divers of the 
fame Principles, belonging both to Vegetables and imany other Bodies; 
are alfo adually exiftent in the Body of Maz. Becaufe even in Geve- 
ration ox Tranfuutation, the Principles which are tran{lated from one 
Body to another, as from a Vegetable to an Aniveal, are notin the leaft 
alter'din themfelves; but only their Mixture, that is, their Conjugation; 
Proportion and Location, is varied. fg aha 
16. §. Hence alfo the difference of Méxture, arifing from the dif- 
ference of Contad, is intelligible ; /c. as to thofe three degrees, Congres 
gation, Union, and Concentration. 
Congregation, and Inconfiftent Mixture, is when the feveral Atomes ig 
touch but ina Point, or fialler part. In which manner, I have divers Chi3. $5 8s 
dtguiments, inducing me to believe the Atomes of all Fluid Bodies, qua 
Fiuid, do touch 5 and in x0 others 

Ch. 2. $. 3 
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