POWER OF COMMUNICATION. 375 



friend. However, I think it fair to record the observa- 

 tion. 



The ant with many larvae made 47 journeys and 

 brought 1 friend. 



Experiment 16. — Time, 4^ hours. The ant with 

 few larvaB made 20 journeys and brought 1 friend. She 

 did not return after the first 2 hours. The other ant 

 made 53 journeys and only brought 2 friends. This 

 latter was the same one as in the previous experiment, 

 when, however, she had the glass with only two or three 

 larvae. 



Experiment 17. — Time, 1 hour. The ant with few 

 larvae made 6 journeys and brought no friend. The 

 one with many larvae made 11 journeys and brought 12 

 friends. 



Expariment 18. — Time, 1^ hour. The ant with 

 few larvae made 25 journeys and brought four friends. 

 The one with many larvae made 20 journeys and brought 

 15 friends. 



Experiment 19. — Time, A\ hours. The ant with 

 few larvae made 74 journeys and brought no less than 

 27 friends. This is quite in opposition to the other 

 observations ; and I cannot account for it. She was 

 the ant who brought 15 friends in the previous experi- 

 ment, and it certainly looks as if some ants were more 

 influential than others. The ant with many larvae 

 made 71 journeys and only brought 7 friends. 



Experim,ent 20. — Time, 2 hours. The ant with few 

 larvae made 35 journeys and brought 4 friends. The 

 one with many larvae made 34 journeys and brought 3 

 friends. 



Experiment 21. — I now transposed the two glasses. 

 Time, 1^ hour. The ant with few larvae made 15 

 journeys and brought no friends. The other made 35 

 journeys and brought 21 friends. 



Experiment 22. — I now transposed the glasses 

 again. Time, 2 hours. The ant with many larvae made 



