258 TEMPERATURE OF ECHIDNA ACULEATA. 



(4). Apart from the bringing on of hibernation, there is an 

 indication that change of the external temperature has an effect, 

 although not a simple or immediate one, on the body-temperature 

 of Echidna, as the average temperature of an animal in Spring 

 was slightly higher than that of the same animal in Autumn. 



In conclusion, I wish to express my indebtedness to Professor 

 Sir Thomas Anderson Stuart, in whose laboratory this work was 

 done, and to Assistant-Professor Chapman, for his helpful advice 

 during the course of the work. 



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