POWER OF COMMUNICATION. 387 



No. 1. No. 2. 



Eeturned 12.31 12.35 an ant to m. 



12.36 

 12.44 

 12.46 

 12.50 

 12.54 

 12.59 

 1. 1 



I then put her into a small bottle. 



I let them out again at 7.10 on the 27th. Though 

 the interval was so long, they began at once to work ; 

 but one unfortunately met with an accident. The other 

 returned as follows, viz. at 



7.20 

 7.30 

 7.40 



7.48 stranger to nn. 

 7.46 

 7.51 

 7.55 

 7.59 



In these experiments, therefore, 17 unmarked ants 

 came ; but at the point n they all took the wrong turn, 

 and not one reached the larvae. 



