262 EXPERIMENTS WITH 
7 inches high (in fact, a hat-box) for the flat paper, 
cutting two small holes at f and g, so that the ants 
passing from the nest to the food went through the box 
entering at f and coming out at g. The box was fixed 
Fig. 25. 
at d, so that it might turn easily. I then, when they 
had got to know their way, turned the box round as 
soon as an ant had entered it, but in every case the 
Fig 26. 
% . 
a 
ant turned round too, thus retaining her direction. I 
then varied the experiment as shown in Figs. 25 and 26. 
I replaced the white disk of paper, but put the 
food ¢ at the middle of the board. When the ant had 
