208 Prof. S. Kinger and Mr. A. P. Stuart on the 



Breathed the steam of the bath. 



Name. 



Temp, of body Eaised during 



Amount of 



In 



Temp, of 



before bath. 



bath to 



elevation. 



Dam. 





O 





o 



mins. 





Mooney . 



98 



101-4 



3 



25 



103 







100-2 







101? 



?» 



98-8 



96-6 



0-8 



33 



100 



55 



98-4 



100 



1-6 



64 



97° aud 98° 



Church . . 



98-8 



100-4 



1-6 



28 



90° to 94° 



Breathed air of outer room. 

 Luff .... . . 101 . . . . 103° to 105° 



In some of the observations we have stated only the time occupied 

 in effecting the rise, as on these days the bath, before it was entered, 

 was first heated to the temperature at which it was maintained ; while 

 on the other days the bath was entered immediately the steam was 

 turned on, being thus occupied while the temperature of the room was 

 rising. 



These experiments enable us to learn the rapidity with which the body 

 may lose heat ; for as the body of the person experimented upon was 

 heated considerably higher than could be maintained by physiological 

 processes, so this unnatural elevation is speedily lost by evaporation, 

 radiation, and conduction. As the loss of heat sustained varied with 

 the temperature to which the body was raised, we shall speak first of the 

 cooling of the body from a high temperature, and next from a tempera- 

 ture a little above that of health. It was found that heat was much 

 more quickly lost under the first than under the latter conditions. 



We now give a Table to show the rapid loss of heat when the tempe- 

 rature of the body has been raised considerably, for instance to 102° and 

 104° Eahr. :— 



Name. Date. Fall. in 



Mountain Dec. 21 2-2 10 minutes. 



Eundell Dec. 21 1-8 10 



Ryman Dec. 18 3-0 13 



„ Dec. 22 2-2 8 



Mooney Jan. 18 1*4 10 „ 



A degree of heat was thus lost in 4*7 minutes. As an interval of five 

 minutes sometimes elapsed between the testings, we can hardly speak 

 with the exactness indicated by the figures. It is better to say the body 

 may lose a degree of heat in less than five minutes. 



The following Table shows that the loss of body heat is much less 

 rapid when the body is less heated, one degree being lost in 40 minutes : — 



