474 



spiratory Organs of Animals, and the preservation of independent 

 Temperatures." By George Macilwain, Esq., Consulting Surgeon to 

 the Finsbury Dispensary. Communicated by William Lawrence, 

 Esq., F.R.S. 



The author expresses his dissent from the prevailing opinion that 

 the temperature maintained by animals above the surrounding 

 medium is proportionate to the extent of their respiration ; and ad- 

 duces many instances among different classes of animals in which he 

 can trace no such correspondence, and others, on the contrary, 

 where increased powers of respiration appear to diminish instead of 

 raising the animal temperature. Hence the author is disposed to 

 regard respiration as a refrigerating rather than a heating process. 



The Society then adjourned over the long vacation, to meet again 

 on the 16th of November next. 



