SIB JOHN LtJBBOCK ON THE HABITS OP ANTS. 225 



Oct. 2. Again at 10 a.m. placed ten chloroformed ants, five 

 friends and five strangers, close to where some were feeding. 

 They were picked up and carried off as before in the following 

 order : — 



At 11. 5 a stranger was picked up and dropped at 11.15 



11.12 a friend „ „ 11.50 



11.25 a stranger „ „ 11.36 



12. 7 „ „ „ 12.45 



12.10 a friend „ „ 12.16 



1.10 a stranger „ „ 2. 6 



1.42 a friend „ „ 1.46 



1.52 „ „ „ 1.56 



2. 6 „ „ „ 3.10 



Only one of them, and that one a stranger, was carried into the 



nest at 12.45, but brought out again at 1.10. 



Oct. 6. At 9 A.M. again tried the same experiment with four 

 strangers and five friends. 



At 9.25 a friend was picked up and dropped at 9.31 



9.32 „ „ „ 9.38 



9.35 a stranger „ „ 9.45 



9.45 a friend „ „ 9.52 



10. 8 a stranger „ „ 10.17 



10.17 a friend „ „ 10.20 



10.22 a stranger „ „ 10.25 



10.28 „ „ „ 10.40 



10 25 a friend „ „ 10.31 



None of them were carried into the nest. 



These experiments seem to prove that under such circumstances 

 ants, at least those belonging to this species, do not carry their 

 friends (when thus rendered insensible) off into a place of safety. 

 It may, however, be said that in this experiment, the ants being 

 to all intents and purposes dead, we could not expect that any 

 difference would be made between friends and strangers. I there- 

 fore repeated the same experiment, only instead of chloroforming 

 the ants I intoxicated them. This experiment is more difficult, as 

 it is not in all cases easy to hit off the requisite degree of intoxi- 

 cation. The numbers therefore of friends and strangers are not 

 quite the same, because in some cases the ants recovered too 

 quickly and had to be removed. In such eases I have latterly 

 replaced the ant so removed by another, so as to keep the number 

 of friends and strangers about equal. I must make more obser- 



