( io6 ) 
There are a great rhany other Indances which make it 
very plain tliat Fire will add both to the bulk and weight 
of Bodies ; but thefe affeft Solid Bodies more manifeltly. 
The EfFed it felf produced by our Fluid does neceflarily 
prove the inherent fiery Particles to have caufed the 
Accenfion. 
And this leads us to the other part of our Matter, 
which in conjundion with the Compound Spirit caufes 
this Accenfion and Explofion. 
But here it will not be amifs to premife a diftinftion 
of Oyls into Vegetable, Animal, and Mineral ; having 
made fome Experiments with all thefe, but mod of all 
with Vegetable ; for which realbn we (ubdivide again 
the Vegetable into thofe made by Expreffion, and thofe 
made by Diftillation : And of thofe made by Dift illa- 
tion we diftinguifli thofe that are made out of the Seeds 
from thofe that are made out of the Trunks, or Cortex, 
or Roots, or any other part of the Vegetable. We 
further obferve a difference betwixt thofe Seeds that 
have only a fragrant fmell and a pungent taft alone , 
from thofe that have both Odorous Emanations and a 
brisk Taft together, and thofe that are infipid, and have 
no fmart Taft. 
In the firft place we muft fet afide thofe Oyls made 
by Expreffion. For having tryed Oyls of Line- feeds, 
of Nuts, of Olives, of Almonds, @*c. we found thefe 
would not make Explofion or Ebullition, or fo much as 
any Fermentation with our Fiery Meteor. Nor could 
I without much ftirring bring them to incorporate : And 
when they did incorporate the heat wasbut juft fenfible, 
and the reafon may be becaufe this fort of Oyl, though 
allowed to be a true Fahulum flamw^^ for it may be 
made to flame alway, yet it is not a true Oyl, although 
it muft be allowed to have one Property of Oyl, that 
it mixes not v*^ith Water ; yet it doth not ftand the Teft 
of the Fire, for if you Diftil it, you may part from it 
Water 
