(II 37) 
thert is a faint and flow Petrifying Spirit in Ookey Rock near Wells. ^ 
an J, as I hear^in fome other Rocky Vaults in BngUnd^mA elfe- 
wherc^ Or do weyet know^what willmore eafily and fpeedily^and 
what more difficulcly,be turned into a S toner Or what the diffe- 
ring cffeds may be fiom the ftveral kinds of MaterialsfWhether 
Banes, or HoinSjOr Album Gracum, &c, may not here be turned 
into o/iea-CoUa , or to a better Improvement c' And they, that 
have the command of Petrifying waters,may make fuch and ma- 
ny other tryals for confiderable Difcoveries in Phiiofophy. I 
know a Rock in England ^ which hath a Hole fo deep ^ that the 
Neighbours do report and generally believe^ that it is bottom- 
hk • And a ftone may be heard to dafli from fide to fide a pretty 
long time. Some Philofophical ufes may be made of fuch deep 
holes. And the ground, which bears the fair ftoneSjCalled A[' 
troites^ about Belveir- Caftle in Lincoln- [bire.znA that which bears 
the little Diamonds near Brifiolj^Ln^ where the ftones of peculi- 
ar figures ^as ot//^/;^^^/,5'ir^/(?/'x, Cockles ^&cc, are found frequent 
on the furface^digg'd up in heaps^infuch places the ground may 
be tryed , both rayfed in Hillocks and funk into Vaults. 
4. I have by experience found 3 that there arefome Vaults of 
no great depth , not at moft above 4 or 5 feet , that will fpee- 
dily diffolveftones^andreleafe from theftony Ligature. Of this 
Irefervefor youafurther accomptj For I am already tedious;and 
this would involvMQto ramy CircuTiftances hardly Credible^ 
whereof one is this, that being expofed to fome sfeuks from 
the keeneft Northwinds^it never yielded to the freezing of any 
thing placed there in thehardtft Frofts of this year^ or of the 
years 1653 and 15^5; as if the Petrifying Spirit had fome affi- 
nity with a long lafting Infrigidation.fince.thac which unfoldech 
the Petrifying Ligature^by the fame property refifteth Froft alfo. 
So one would imaginerBut by common Experience we know^that 
Frofts with i'oow and Rain will diffolve many kinds of ftone, 
and a very rich Marie , which for one^two, an J fometimes more 
winters holds outagainft all weather^and looks all over very like 
greety ftone. Chalk is a pregnant Compoft for fome Lands 5 the 
Froft and ^novv will diffolve itjand makeit lun into good ma- 
nure ^ when the hummer-heat with all the hummer-rain cannot 
-diffolve ita 
5. Ym 
