The supplied passage reports that M. Tillet, Dr. Fordyce, and Sir Charles Blagden entered a room heated to more than 260°F. Sir Charles Blagden’s pulse rose to 144 beats per minute, but the account states that “no harm ensued.”[1]
The passage says that steaks were cooked and eggs roasted inside the same room, presented as evidence that the temperature reading was genuine.[2] It also reports that girls accustomed to working in bakehouse ovens could tolerate 270°F for ten minutes, according to the testimony of Messrs. Duhamel and Tiller.[3]
However, the supplied passage presents these observations and reported outcomes without explaining the precise protective mechanism that prevented lasting injury. It therefore documents the endurance demonstration, but does not establish exactly how the participants remained unharmed.
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