9 1 1 



SinilT LITTLE USED 



successivo journeys from the nest to the buse of tlie 

 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 



Fitr. 14 



lloutes followed in experiment No. 3, as described in text 



The line at the six arrows represents a paper brid=;e going to nest. 

 c, china cup on top of penciL D, pencil moved. E, place where 

 a stray larva was found. 1, 2, 3, 4, dotted lines show the nearly 

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

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

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



