Aridinc; Cities 



197 



necessary for their liabits. But in the class of 

 workers it has been found more useful, on the 

 whole, to concentrate attention on smell and on 

 strength of jaw than on sij^lit and flight : the 

 important point is that the worker ant should he 

 able to find scattered foodstuffs, and should be 

 str(.Mij4 enough to pull them back to the city. So 

 in Xo. S you j^et a front view of the head of the 

 common Garden Ant ; and you will see for your- 

 self that its eyes, when compared with the nume- 



NO. 9.— BACK VIEW OF HEAD, WITH JAWS OPKN, AM) oKciANS 



KXI'ANHEI). 



rous eyelets and lart^e compound orj^ans of the 

 wasp, are relatively imperfect ; while its antenmc 

 are large and fully developed appendages. They 

 turn in a beautiful ball-and-socket joint, which 

 enables them to move freely in every direction. 

 Now, these anteiuue cpiite clcarlv serve several 

 most important uses in ant life. They are the 

 organs of speech in ants, as well as the organs 

 of a special sense ; just as, with ourselves, the 

 mouth is used equally for tasting and talking. 



