DELAROCHE AND BERGER. 845 



108 in five minutes, when his respiration became 

 hurried and distressing, his venous blood of a 

 bright arterial hue, and his strength prostrated. 

 (Phil. Trans, for 1781.) 



In accordance with these facts, it has been re- 

 cently shown by the experiments of Delaroche 

 and Berger, that when surrounded with hot me- 

 dia, the temperature of man is raised several de- 

 grees above the natural standard that when 

 M. Berger remained sixteen minutes in a room 

 heated to 188, his temperature under the tongue 

 rose 7 while that of M. Delaroche rose 5'5 

 in seventeen minutes in a vapour bath at 120. 

 They further ascertained that when birds and 

 the smaller mammalia were treated in the same 

 way, their temperature rose from 10 to 14 de- 

 grees above the normal standard ; when they 

 became greatly prostrated, and generally expired 

 under the experiments, doubtless, because, as 

 I have already shown, the temperature of the 

 solids is raised to an equilibrium with that of the 

 arterial blood, and the process of nutrition arrested. 

 They also found that cold blooded animals very 

 soon died when raised to the temperature of from 

 104 to 108, corresponding with the results of 

 Edwards, who found that frogs and other batra- 

 chians die sooner when immersed in water at 100 

 and upwards, than at lower temperatures. 



With a view of satisfying my own mind more 

 fully in regard to the influence of the hot and 

 warm bath, on the temperature and circulation of 



