ANIMAL HEAT. 233 



one of the most eminent of my predecessors at St. Thomas's Hos- 

 pital, went successively into rooms heated to 90, 110, and 120. 

 In the first temperature he staid five minutes, and sweated gently. 

 In the second, he sweated more profusely, and remained ten 

 minutes. In the third, after remaining twenty minutes, the ther- 

 mometer under the tongue and exposed to the urine was at 100, 

 the pulse was 145; the veins of the surface were enlarged, and the 

 skin red. He afterwards entered a room heated to 130, and 

 staid 15 minutes: the thermometer under the tongue, in the hand, 

 and exposed to the urine, was at 100. 



Sir Joseph Banks, Sir Charles Blagden, and Dr. Solander, went, 

 subsequently into rooms heated to between 196 and 211, about 

 the temperature of boiling water, and remained several minutes. 

 If they breathed on the thermometer, it sunk several degrees, and 

 every expiration felt cold to the scorched nostrils : the thermo- 

 meter under the tongue was 98, and the body felt cold to the 

 touch, though at 98. Sir C. Blagden remained eight minutes in 

 an apartment heated to 260. The air felt hot, and for seven 

 minutes the breathing was natural, but anxiety and oppression 

 then came on ; the sensible heat of the body varied but little. 

 Dr. Dobson went into a room heated to 224?, and felt no op- 

 pressive heat, though every metal about him speedily became 

 hot. A bitch of moderate size was subjected to a heat of 220. 

 In ten minutes the only sign of distress was that of holding out 

 the tongue, and when taken out at the ^end of half an hour, the 

 temperature being at 236, the bottom of the basket was found 

 wetted with saliva. The thermometer applied to her flank was 

 only 1 10, f. e. 9 above the natural standard. 



In these rooms, eggs on a tin plate were roasted hard in twenty 

 minutes ; beef-steaks cooked in thirty-three minutes ; and, if the 

 air was impelled upon them in a stream, they were cooked dry in 

 about thirteen minutes. 



Tillet and Duhamel relate that the young female servant of a 

 baker at Rochefoucault went habitually into ovens heated to 276, 

 and remained without great inconvenience for twelve minutes, 

 taking care not to touch the oven. These gentlemen themselves 

 bore a heat of 290 for nearly five minutes. Dr. Delaroche and 



The thermometer in the shade stood above 100 Fahr., and, when applied to the 

 body, invariably sunk to near 97." 



