142 YOUNG ANTS KECOGNISED 



then abandoned. At 10.50 the third also was dragged 

 out of the nest. 



I then put two of these ants and a third young one 

 into nest 2. At 11.15 a.m. they seemed quite happy; 

 but at 11.30 two were being dragged about; the third, 

 who was very young, was, on the contrary, being care- 

 fully cleaned. At 12 this last one was undistinguish- 

 able ; of the other two, one was being attacked, the 

 second was taken no notice of, though several ants 

 came up to her. At ] 2.5 the first was dragged out of 

 the nest and then abandoned ; the second was being 

 carefully cleaned. This went on till 12.20, when the 

 paint was entirely removed. 



September 27. — I put in three more of these young 

 ants into nest 1, at 7.45 a.m. At 8 o'clock they seemed 

 quite at home among the other ants. A few minutes 

 after, one was being held by a leg ; the other two seemed 

 quite at home. At 8.30 one was almost cleaned, the 

 other I could not see. At 9 two of them were quite at 

 home, but I could not see the third. At 9.30 they were 

 both nearly cleaned ; and after that we were no longer 

 able to distinguish them. 



Thinking the results might be different if the anta 

 were allowed to become older before being retm-ned into 

 their nests, I made no further observations with these 

 ants for two months. I then took two of the ants which 

 had emerged from the pupae separated on Septem- 

 ber 20, and which had been brought up by ants 

 from nest 2, and on November 22 I put them hack 



