532 PROCEEDINGS OF THE ACADEMY OF [Oct., 



blood-relations. They were repeatedly dragged away from the 

 nursery and were kept on probation until their personal odor was 

 ascertained, and were within a day received into full association 

 with their kindred. 



A queen of colony D with four workers that she had reared 

 from larvse of the C colony, together reared three callows from 

 pupae of the E colony. When the callows were twenty days old, 

 I put them in a Petri cell with adults of the E colony. The 

 callows attacked the adults as with intent to kill, but they met 

 with great toleration, and within a day all the inmates of the cell 

 were living together in unity. In every case where callows were 

 returned from among aliens to their own stock, the action of the 

 adults bore a strange similitude to patient and forbearing discipline 

 directed toward the reclamation of Avayward offspring. 



In a nest containing a queen and workers of colony C, I put a 

 few young ants that had been reared in another section of the 

 C colony from pupse of the E colony. The young ants showed no 

 fear of their new host, and were received with but slight sign of 

 suspicion. They were treated as are alien ants smeared with ihe 

 juices of kindred.^ But the superficial gloss did not long deceive, 

 and at the end of the second day the young ants had all been killed 

 and dismembered. Incorporation into one section of a colony 

 never gave permanent safety in another section of the same 

 colony that I had divided. 



Workers of colony D alone reared four callows from pupse of 

 colony C. I segregated these callows and introduced to their cell 

 four adults from another section of colony C. The adults imme- 

 diately attacked the callows, indicating that they were overlaid 

 with the odor of the workers that had fostered them; but the 

 inherent odor of the callows was also influential, for none were 

 killed, and the next day all the eight ants were clustered serenely 

 in one group. 



The odor is inherited through the queen. Five queens of the C 

 colony, each sequestered with a few of her workers, reared from 

 her own eggs several young ants. I am uncertain whether the 

 five kings associated with these queens were of different colonies. 

 The issue of any one queen would live in amity with the issue of 



• " A Study of an Ant," A. M. Fielde, Proceedings of the Academy of 

 Natural Sciences of Philadelphia, September, 1901. 



