215 EFFECTS OF HEAT ON THE ANIMAL ECONOMY. 



13 minutes, Mr. Bcrger entered it at - 3h. 41m, 



left it at - - - - - - 3h. 54 m. 



loss near 11 oz. Weight of his body when he entered - 105ib. 2oz. 



five minutes after he came out - 1041b. 7oz. 6gr. 



Other effects. On entering he felt a slight burning heat at the nostrils 

 and round the nipples. The perspiration, .which began to 

 appear on his forehead in four minutes, flowed copiously 

 from all parts of his body two minutes after. At coming 

 out he felt a little weakness and even faintness. His pulse 

 the instant before beat 128 in a minute. 



Experiment III. 



From 228° -8 Temperature of the room at the beginning - 228° *8. 



to 22b * ' 5 ' at the end - - 225° -5. 



7 minutes, Mr. Berger entered it at 4h. 32 m. 



left it at 4 h. 39 m. 



loss 7oz. if gr. Weight when he entered - - - - 1031b. 15oz. 3gr. 

 ten minvtes after he came out - 1031b. 8oz. lfgr* 



Other effects. He felt a pretty sharp burning round the nipples, at the 

 nostrils, and even all over the face. In four minutes he 

 was covered with a copious and general perspiration. When 

 he came out he was weak and ill. A moment before he was 

 not able to count the beats of his pulse. Three quarters of 

 an hour after he came out he had recovered his natural state. 



Capacity of en- These experiments agree entirely with those reported by 



during heat dif- - , ™ , : , . i . . ui T 



Fers greatly in Sir Charles Blagden in showing, that man is capable of en- 



mdividuals. during exposure to very high degrees of heat for a short 

 space of time : but they show likewise, that there is a great 

 difference between individuals with respect to this capacity. 

 In these experiments Mr. Berger supported heat much better 

 than I, as appears obvious on comparing them. On the 

 Other hand, if we compare them with those of the English 

 philosophers, we shall find, that they, or at least Sir Charles 

 Blagden, suffered much less from the heat than Mr. Berger 

 himself. In fact in one experiment he endured for eight 

 minutes a temperature between 240° and 260 Q , without ex- 

 periencing more inconvenience, than Mr. Bcrger did after 

 staying seven minutes in a temperature of 227 Q *8. Another 

 time Sir Charles Blagden was exposed for twelve minutes to 

 a heat of 222°, without suffering any inconvenience but a 

 little weariness. 



Mr, 



