C ty$i ) 
reft, and mort irregular in their figures, but coagulated 
together, fomeof em werclquares, but not regular. 
I took about ten times as much Rain water, and raingrd 
it with the above-mentioned Salt water^and then obfcrv'd 
that the Salts were not diffolv'd, but emerged to the top 
of the Water, but when I preft the fame Salt Particks 
under Water, fo as to wet them all over 5 they fubiided 
to the bottom, and remained there without being difiblv d, 
or uniting themfelves to the faid Water. 
Now feeing the great number of Salts extrafted from 
the aforefaid Stone are of fo obftinaieaad tenacious a 
figure that nothing but Fire can divide them, "and then 
too they are fuch inflexible bodies, that they cannot be 
diflblved in Water 5 we may well conclude that the 
grains of Sand which compofe fuch Stones were not only 
ioft at the time of their coalition or union with each other, 
butalfo at the fame time there intervened a very inflexi. 
blc fixt Salt ( in lieu of Mortar ) between the particles of 
Sand, unlefs you will chufe to fay, that each particle of 
Salt do in fome degree confift of luch fixt Salts. 
Alter this, I took a piece of Hearth (tone called Be^- 
themcr ftone, becaufe it is found in Quarries in the County 
oi Eenihem^ and is brought ()0 us in great or fmall Blocks 
or Parcels ; this Stone was fo foft that I could eafily 
crumble it between my fingers, as I did, and viewing it 
with one of my Glafles,could perceive nothing but particles 
of Sand.without theleaft fitioothfide, or regular corners 5 
and it feemed to me moreover, that this Jand had acquired 
a fort of conglutination, or was grown into a folid fub- 
ftance, which we call Stone, a long time after it had been 
nothing but Sand, and its particles had been worn and 
collided againft each other 5 myreafonis, becaufe this 
Sand that had been lately Stone, in the fides of every grain 
of it was as full of fmall holes ^and breaches as any Sand I 
ever faw 5 and in viewing them one would imagin that 
they were composed of thoufands of fmaller particles, and 
that fome of them were of a triangular, others of an c^x- 
Cccccccc 2 a& 
