TEMPERATURE OF MAN AND ANIMALS. 



791 



In the next table are collected the results of various observations 

 upon other mammals and birds ; in most of these cases the figure given 

 for the temperature represents the result of a single observation 4 : 



The above tables show that the rectal temperature of most of 

 the mammals is higher than that of man; the most marked ex- 

 ception is found in the monotremata, the lowest group of the mam- 

 malia; thus the temperature of the porcupine echidna (Echidna hystrix) 

 varies from 25'5 to 34'2, that of the duckbilled platypus (Ornitho- 



1 "Researches," London, 1839, vol. i. p. 186. 



2 Journ. Comp. Path, and Therap., Edin. and London, 1896, vol. ix. p. 286. 



3 Arch, de biol., Gand, 1887, tome vii. p. 265. 



4 For the temperature of other animals, see Gavarret's " De la chaleur produite par les 

 etres vivants," Paris, 1855, p. 92 ; Richet, Rev. scient., Paris, 1884, tome viii. p. 298. 



5 "Works," Palmer's edition, vol. iii. p. 340. 



6 "Researches," London, 1839, vol. i. pp. 181, 188. 



7 "Essays, Medical and Philosophical," 1740, p. 337. 



8 Milne Edwards, " Le9ons," tome viii. p. 16. 



9 "Physiologic," Bd. i. S. 454. 



10 Rev. scient., Paris, 1885, tome ix. p. 202. 



11 Ann. de chim. etphys., Paris, Ser. 2, tome xxiii. p. 61. 



