‘APPENDIX. 269 
Experiment t 
1. TN Experiment LX VI. Vbl I. /. 181. I 
have given an Account of the Method 
I tifcd to try what Proportion of Air could 
be obtained from Brandy, common Water, 
Rain, Holt^ Briftol and Piermont Waters. I 
procured in like manner a good Qiiantity of 
Air from Spaw and Tunbridge Waters. 
2. Tis obferved that when thefe Waters 
are deprived of this fubtile elaftic Matter^ 
which is impregnated with a fulphureous vi- 
triolic Spirit ; they then lofc their mineral 
Virtue and EfFefts, and will neither tinge with 
Galls or Syrup of Violets ; and are alfo there- 
by deprived of their good Efficacy to thofe who 
drink them. 
3. I found by the like Tryals on Ebjham 
and A5ion Waters, that they had little more 
of this elaftic Matter than common Waters j 
doubtlefs it is the fame with Scarborough, 
Stretham, and the like purging Waters. The 
Airs of fomc of thefe mineral Waters, either 
loft their Elafticity or were reforbed again in- 
to the Water in ftanding two or three Days ; 
but a great part of that of Ebjbam and A£ton 
continued 
