POWER OF C0MAIU5ICATI0N. 399 



friend. However, I tliink 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 larvae 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. 



Experim,ent 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, 4^ 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. 



Experiment 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. 



Eocperiment 21. — I now transposed the two glasses. 

 Time, IJ 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 



