378 EXPEEBVTEKTS ON 



put out the same piece of cork with ten pins, each with 

 a piece of card and one with honey. At 4.40 I put an 

 ant to the honey ; she fed comfortably, and went away 

 at 4.44. 



At 4.45 she returned, and at 5. 5 went away again. 

 „ 5.40 „ „ 5.55 „ 



„ 6.13 „ and again at 6.25 and 6.59. 



There were a good many other ants about, which, up to 

 this time, went up the pins indiscriminately. 



At 7.15 an ant came and went up the right pin, and 

 another at 7.18. At 7.26 the first ant came back with 

 a friend, and both went up the right pin. At 7.28 

 another came straight to the honey. 



At 7.30 one went up a wrong pin. 



