398 EXPERIMENTS ON 



Experiment 8. Time occupied, 1^ hour. The ant 

 with few larvae made 7 journeys and brought 3 friends. 

 The one with many larvae made 19 journeys and brought 

 6 friends. 



Experiment 9. Time occupied, 1 hour. The ant 

 with few larvae made 11 journeys and brought 1 friend. 

 The one with many larvae made 15 journeys and 

 brought 13 friends. 



Experiment 10. I now reversed the glasses, the 

 same two ants being under observation ; so that the ant 

 which in the previous observation had few larvae, now 

 consequently had many, and vice versa. Time occupied 

 2 hours. The ant with few larvae made 21 journeys 

 and brought 1 friend. The one with many larvae made 

 32 journeys and brought 20 friends. These two experi- 

 ments are, I think, very striking. 



Experiment 11. Time occupied, 5 hours. The 

 ant with few larvae made 19 journeys and brought 1 

 friend. The one with many larvae made 26 journeys 

 and brought 10 friends. 



Experiment 12. Time occupied, 3 hours. The ant 

 with few larvae made 20 journeys and brought 4 friends. 

 The one with many larvae 'brought no friends and made 

 17 journeys. 



Experiment 13. Time occupied, 1 hour. The ant 

 with few larvae made 5 journeys and brought no friends. 

 The one with many made 10 journeys and brought 16 

 friends. 



Experiment 14. I now reversed the glasses. Time 

 occupied, 2 hours. The ant with few larvae made 10 

 journeys and brought 2 friends. The other made 41 

 journeys and brought 3 friends. 



Experiment 15. Time occupied, 4 hours. The 

 ant with few larvae made 40 journeys and brought 10 

 friends. Of these, 8 came at the beginning of the ex- 

 periment, and I much doubt whether they were brought ; 

 during the last hour and a half she only brought 1 



