254 SIGHT LITTLE USED 
successive journeys from the nest to the base of the 
pencil. I then moved the pencil 6 inches to D, and 
the two following routes are marked 5 and 6. In one 
of them, 5 (thick white line), the ant found a stray 
Fig. 14 
Routes followed in experiment No. 3, as described in text 
The line at the six arrows represents a paper bridge going to nest. 
c, china cup on top of pencil. D, pencil moved. 4, place where 
a stray larva was found. 1, 2, 3,4, dotted lines show the nearly 
direct journeys. 5, thick white line (crossing ¢ in black) of route 
returning to nest, the ant having picked up a stray larva at BE. 6, 
very circuitous thin white line of track from nest to pencil D. 
