COMI ri 



MI 



Latreille, St. Fargeau, Forel Difference of character among 

 ants Experiments Isolated combats Neglect of com- 

 panions if in trouble Experiments with insensible ants- 

 Drowned ants Buried ants Contrast of behaviour to 

 friend* and strangers Instances of kindness A crippled 

 ant A dead queen Behaviour to chloroformed friends 

 Behaviour to intoxicated friends . 03 



CHAPTER VL 

 RECOGNITION OF FRIENDS. 



Number of ants in a community They all recognise one another 

 All others are enemies Recognition after separation 

 Strange ants never tolerated in a nest Experiments Be- 

 haviour to one another after a separation of more than a 

 year Recognition unmistakable How are they recognised ? 

 Some naturalists have suggested by scent, some by a 

 past-word Experiments with intoxicated ants With pupae 

 removed from the nest and subsequently returned Separa- 

 tion of a nest into two halves, and recognition as friends by 

 the ants in each half of young bred in the other half Pupae 

 tended by ants from a different nest treated as friends in 

 the nest from which they were taken, and as strangers if 

 put Into the nest of their nurses Recognition neither per- 

 sonal nor by means of a pass-word . . . .lit 



CHAPTER VII. 

 POWER OF COMMUNICATION. 



Statements of previous writers : Kirby and Spence, Hnber, 

 Franklin, Dngardin, Forel Habit of bringing friends to 

 food Exceptional cases Experiments to determine whether 

 ants are brought or directed to stores of food Scent Sight 

 Experiments with different quantities of food Ante 

 which returned empty-handed and brought friends to 

 assist . . .158 



