266 EXPERIMENTS WITH 
deal. Experiment 3, as well as some of those recorded 
previously, seemed to show that ants were little guided 
in such cases by the position of surrounding objects. 
However, I was anxious to test this. 
7. Accordingly I took a round box and placed it 
upside down on the table, having cut two niches, one 
at each side, where it lay on the paper path, so as to 
afford a passage for the ants, as in the experiments 
recorded in my previous paper; but on this occasion I 
left the lid on, cutting, however, a hole through which 
I could watch the result. In this case, therefore, the 
surrounding objects, z.e. the walls of the box, turned 
round with the table. Then, as before, when the ants 
were between I and p, I turned the table half round. 
The results were as follows :— 
Ants which Ants which 
turned did not turn 
Experiment 
OrFPNOFKFCOCOREH eS 
COO Oo te bo ee bo 
a 
— 
o 
In this case, then, only 11 ants turned; and as 4 
of them were together, it is possible that 3 simply 
