Ants. 15 



would clearly be undesirable for them to undertake 

 rough work or run into danger until their armour 

 had had time to harden. There are, however, 

 reasons for thinking that the division of labour is 

 carried still further. I do not allude merely to 

 those cases in which there are completely different 

 kinds of workers, but also to the ordinary workers. 

 In the yellow Meadow Ant, for instance, it seems 

 probable that the duties of the small workers are 

 rather different to those of the large ones, though 

 no such division of labour has yet been detected. 

 I have myself made some further observations 

 pointing in the same direction. 



