734 



THE AMERICAN NATURALIST [Vol. XLIII 



These toads were under daily observation from Oc- 

 tober 23 to April 1, excepting five days from December 

 26 to 30. Fig. 7 is given as an average month's record 



of this experiment. The continuous lines represent the 

 time the toads spent under the earth; the breaks, the 

 number of times the toads came up out of the earth ; the 

 figures in the breaks, the number of meal worms eaten 

 at such times. 



Experiment No. IV 



This experiment was also carried on in my room, 

 from the twenty-third of October until the eighth of April. 

 During this time a female, weighing forty-eight grams, 

 was kept in a small bell jar which contained, besides the 

 toad, only a small thin piece of sponge. The sponge was 

 kept moist and a piece of glass over the top of the jar 

 prevented too rapid evaporation. 



When the toad was placed in the jar she was cold, numb 

 and to all appearances hibernating, but five hours after 

 being brought into a warm room she was wide awake, 

 and from then on to the end of the experiment was never 

 seen with her eyes closed nor showing the least signs of 

 hibernation. She fed throughout the winter, eating in 

 all, the small number of 173 meal worms or their equiva- 



