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 fthick white line), the ant found a stray 



Fig. 14 



Koutes 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, is, place where 

 a «tray larva was found. 1, 2, 3, 4, dotted lines show the nearlj 

 direct journeys. 5, thick white line (crossing c in black) of route 

 returning to nest, the ant having picked up a stray larva at E. 6. 

 very circuitous thin white line of track from nest to pencil o. 



