[ II4 ] 
ip.iilutes in a heat of 90°, when he began to fweat gently. 
He then entered the firil room, and hood in the part heated 
to 1 1 0° ; in about half a minute his fliirt became fo wet 
that he was obliged to throw it ahde, and then the water 
poured down in breams over his whole body. Having re- 
mained ten minutes in this heat of 110°, he removed to 
the part of the room heated to i 2 0°; and after haying there 
twenty minutes, he found that the thermometer placed 
under liis tongue, and held in his hand, hoodjuhat 10 o'", 
and that his urine was of the fame temperature. His pulfe 
had gradually rifen till it made 145 pulfationsma minute. 
The external circulation was greatly increafed ; the veins 
had become very large, and an univerfal rednefs had dif- 
fufed itfelf over the body, attended with a hrong feeling 
of heat. His refpiration, however, was but little affecSted. 
Here Dr. fordyce remarks, that the moihure of his fkin 
moh probably proceeded chiehy from the condenfation 
of the vapour in the room upon his body. He concluded 
this experiment in the fecond room, by plunging into 
water heated to 100°; and, after having been wiped dry, ’ 
was carried home in a chair; but the circulation did not 
fubhde for two hours, after which he walked out in the 
open air, and fcarcely felt the cold. 
EXPERIMENT 11 . 
In the hrh room the higheh thermometer varied from 
1 3 2° to 130°; the loweh hood at 1 1 9°. Dr. fordyce hav- 
ing undrehed in an adjoining cold chamber, went into the 
heat of 1 1 9°; in half a minute the water poured down in 
hreams over his whole body, fo as to keep that part of the 
hoor 
