[ 457 ] 
the vibrations of my pulfe fr«m 84 to 80, and from 
92 to 86. But the flimulus of the water foon be- 
came fuperior to the fedative powers of the cold to 
which 1 was expofed ; for within the fpace of half 
an hour my puife rofe to 90 in the fi'rft, and to 100 
ftrokes in the fecond trial. At eleven o’clock be- 
fore noon, when the air was warm and ferene, the 
water in a much fborter time excited its force, in- 
creafing the velocity of my pulfe from 90, to 109 
vibrations in a minute. Thefe experiments evince 
the heating quality of Buxton water, and fugged; to 
us the precautions to be obferved in the ufe of it. 
Small quantities fhould only be drunk at once, and 
frequently repeated ; the belly ihould be kept foluble 
with lenitive Eleduary, or any other mild purgative 
and at the beginning of the courfe, the patient may 
be direded to buffer the water to remain a few fe- 
conds in the glafs, before he fwallows it. For this 
celebrated fpring abounds with a mineral fpirit, or 
mephitic air, in which its flimulus, and indeed its 
efficacy refides, and which is quickly diffipated by 
expofure to the air. 
The honourable and ingenious Mr. Cavendifh has 
fhewn by his Experiments on Rathbone Place water, 
Ph. Tranfadions, vol. LVII, that calcareous earths 
may be rendered foluble in water, by furnifhing them 
with more than their natural property of fixed air. 
And it has lately been difcovered that iron alfo may be 
fufpended by this principle, in the fame menftruum 
It appeared therefore highly probable to me, that a 
chalybeate impregnation might with great facility 
* Vid. Mr, Lane’s experiments, Ph. T ranfactions, Vol. LIX. 
Vol. LX. II. N n n be 
