A KOTATING BOX. 



267 



followed the first. Moreover, the ants which turned 

 did so with much more hesitation and less immediately. 

 8. For comparison, I then again tried the same 

 experiment, but without the box. The results were as 

 follows : — 



Under these circumstances, therefore, all the ants 

 but one certainly turned, and her movements were 

 undecided. 



From these last two experiments it is obvious that 

 the presence of the box greatly affected the result, and 

 yet the previous results made it difficult to suppose 

 that the ants noticed any objects so distant as the walls 

 of the rooms, or even as I was myself. The result 

 surprised me considerably ; but I think the explanation 

 is given by the following experiments. 



I again put some larvae in a cup, which I placed in 

 the centre of the table ; and I let out an ant which I 

 had imprisoned after the previous experiments, placing 

 her in the cup ; she carried off a larva to the nest and 

 soon returned. When she was again in the cup I half 

 rotated the table : when she came out she seemed a 



