POWERS OF COMMUNICATION. 



165 



been informed by A of the existence of the larvae, they 

 found their way to them by tracking A'S footsteps. If the 

 former, they would in any case pass over the bridge K 

 hy whichever strip of paper it was constituted. On 

 the other hand, if they found the larvae by tracking, 

 then as the piece of paper by which A passed was 

 transferred to L, it would mislead them and carry them 

 away from the larvae to I. In every case, then, I trans- 

 posed the two .papers forming the little bridges as 

 soon as the ant A had crossed over K and L. 



I put her (November 7, 1875) to the larvae on r 

 it 6.15 A.M. After examining them carefully, she re- 



led to the nest at 6.34. No other ants were out ; 

 but she at once reappeared with four friends and 

 jched the larvae at 6.38. None of her friends, how- 

 jver, crossed the bridge ; they went on to D, wandered 

 nit, and returned home. A returned to the larvae at 

 {.47, this time with one friend, who also went on to o 

 id returned without finding the larvae. 



7. 0. Ant A to larvae. 



7. 8 



7.17 



7.25 



7.32 



7.39 



n (went over 

 An ant at 7.10] 



( L to i. 



with a friend, who at 7.21 



Jwith two friends,) 

 ( one of whom at] 



the other at 7.35 



with a friend who 



went on to D, and * 7.4 1 



then at . 



