272 



ANTS TO SOME EXTENT 



To m' 



To m' 



To M 



3 5 



It seems clear, therefore, that though the ants die! 

 not trust so much to their eyes as a man would have 

 done under similar circumstances, yet that they were 

 to some extent guided by sight. 



I then removed all the paper pathways and put the 

 Fig. 31. pillar to M. Of the first two ants 



which came to the table, the first 

 found the pillar in five minutes, 

 the second, after wandering about 

 for a quarter of an hour, gave the 

 search up in despair, and went 

 home. I then moved the pillar 

 to m', and watched the next ant 

 that came on to the table ; she found it in a minute or 



