248 07 t the Afiimal Calculus. 
zj. I have the Honour to be nearly related 
to a worthy Perfon, v/ho led formerly an 
afflicled Life from the frequent Returns of 
^ violent Colic FainSy till file was with hap- 
py Succefs advifed by the noble Van Hel- 
“ mont not to drink (as file then did) Beer 
‘‘ brewed with IVell JVater and her Health 
“ is even now fo far owing to this Manage- 
merit, that an Error in it is unavoidably 
f followed with the wonted Complaints. 
16. ‘‘ por thefe Reafons Pliny tells us, Jib. 
“ 51. e. 3. that thofe Waters are condemned 
in the firfl Place, 'which 'when boiled do. in- 
ertifirate the Sides of the Fejfels; and that 
our Well Waters do this, no body who 
look? into the Hea-Kettles of our Gentle- 
women can be ignorant. 
27. Idelrnont in Ins Lithiajis mentions a 
petrifying Spring near Brtixells, which fub- 
jefts the Monks to the Gripes, unlefs they 
daily ufe wild Carrot-feed boiled in Beer. There, 
are indeed on the contrary fevera! Inftances 
of Perfons iifing petrifying and incrufting Wa- 
ters without finding any the like Inconvenicn- 
cies, or being ever fubjefl: to the Scone, but 
we cannot thence reafonably infer that many 
pernicious Effefts are not frequently produced 
by them* 28. To 
