240 



THE INDUSTRIES OF ANIMALS. 



emptied, and contained no more honey in summer 

 than in the spring. During that year Death's-head 

 Moths were very numerous. The illustrious naturalist 

 soon became certain that this moth was guilty of the 



thefts in question. While he was reflecting as to 

 what should be done, the bees, who were more 

 directly interested, had invented several different 

 methods of procedure. Some closed the entrance 



