BY H. S. HALCRO WARDLAW. 



241 



will be noticed that, between the periods of hibernation, the 

 temperature of the animal rose very sharply to its normal values 

 in the vicinity of 30°O. This animal was injured on one occasion 

 (May 27th) while inserting the thermometer, and was left undis- 

 turbed for a few days to recover. It was still alive and in 

 good health at the end of the period of the observations. 



Echidna No. 7 showed the first signs of hibernation on May 

 20th. Before that date, its morning-temperature varied between 

 30"2'' and 26*1°C., its afternoon-temperature between 33'3° and 

 29-2''G. The first period of hibernation began on May 25th; the 

 animal was left undisturbed, but became active again on June 

 1st. This animal hibernated on eight successive occasions during 

 the Winter, most of its time during that season being spent in 

 the torpid condition. The periods of hibernation were May 25th 

 29th, June 4th, June 9th-llth, June 15th, June 17th-22nd, June 

 23rd-30th, July 3rd-10th, July 14th-21st, and, finally, from July 

 27th till the death of the animal on August 1st. 



Tablk ii. 

 Spring and s ummer temperatures of Echidna. 



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