TEMPERATURE IN THE DEVELOPMENT OF ANTS. 367 



The ability of ants to survive a submergence of several days in 

 water explains their persistence in areas where freshets periodi- 

 cally exterminate all other land insects, and their power to live 

 for many months without food explains their occupancy of places 

 subject to long droughts that destroy their whole food-supply. 



MARINE BIOLOGICAL LABORATORY, 



WOOD'S HOLL, MASS., September, 1905. 



