328 COMPARATIVE ZOOLOGY 



called constant temperatured or warm blooded. Other 

 animals do not vary greatly in temperature from that 

 of their surroundings, and are called changeable tem- 

 peratured or cold blooded. Stilt, their temperature does 

 not agree exactly with that of the air or water. The 

 bee is from 3 to 10, and the earthworm and snail 

 from i y to 2, higher than the air. The mean temper- 

 ature of the carp and toad is 51 ; of man, 98.5 ; dog, 

 99; cat, 101; squirrel, 105; swallow, 111, all ac- 

 cording to the Fahrenheit scale. 



