IN FINPING THEIR WAY. 



2,') 7 



rate, guides itself but little by sight. This, which I 

 had not at all anticipated, seems to follow from the 

 fact that after the pencil and tray of larvae had been 

 removed but a short distance to the right or left, tlie 



Fie:. 17. 



Another tracing: showing a simihir experiment. 1, 2, 3, the dinct 

 broad lines towards A ; and 4, the complicated track made when 

 reservoir of larviB was removed to B. 



ants on their journey to the shifted object travelled 

 vpry often backwards and forwards and around the spot 

 where the coveted object first stood. Then they would 

 retrace their steps towards the nest, v?ander hither ajid 



