[ ii8 ] 
count our pulles by the watch : mine, to the beft of my 
judgment by feeling it, beat at the rate of loo pulfa- 
tions in a minute, near the end of the firft experiment ; 
and Dr. solander’s made 92 pulfations in a minute 
foon after we had gone out of the heated room. Mr. 
BANKS fweated profufely, but no one elfe; my fliirt was 
only damp at the end of the experiment. But the moll 
ftriking effects proceeded from our power of prefer v- 
ing our natural temperature. Being now in a fituation 
in which our bodies bore a very different relation to 
the furrounding atmofphere from that to which w^e had 
been accuflomed, every moment prefented a new phae- 
nomenon. Whenever we breathed on a thermometer the 
quickfilver funk feveral degrees. Every expiration, parti- 
cularly if made with any degree of violence, gave a very 
pleafant impreffion of coolnefs to our noftrils, fcorched 
juft before by the hot air rufliing againft them when we 
infpired. In the fame manner our no^v cold breath agree- 
ably cooled our fingers whenever it reached them. Upon 
touching my fide, it felt cold like a corpfe ; and yet the 
aftiial heat of my body, tried under my tongue, and by 
applying clofely the thermometer to my flcin, was 98°, 
about a degree higher than its ordinary temperature. 
When th,e heat of the air began to approach the higheft 
degree which this apparatus was capable of producing, 
9Ctr bodies in the room prevented it from riling any 
h^igher; and when it had been previouflyraifed above that 
point, ineyitably futfk it. Every experiment furnifhed 
proofs of this: toward the end of the firft, the thermo- 
3 meter 
