1 64 FLASHLIGHTS ON NATURE 



workers. As autumn comes on, however, and the 

 future of the race must be provided for, she lays 

 eggs which hatch out a brood of perfect females 

 or queens like herself. It is probable that the 

 same egg may develop either into a queen or a 

 worker, and that the difference of type is due to 



NO. 5. NEST OF TREE-WASP, WITH PAPER PARTLY REMOVED. 



the nature of the food and training. A young grub 

 fed on ordinary food in an ordinary cell becomes a 

 neuter ; but a similar grub, fed on royal food and 

 cradled in a larger cell, develops into a queen. As 

 with ourselves, in fact, royalty is merely a matter of 

 the surroundings. 



