SIB JOHN LUBBOCK ON THE HABITS OF ANTS. 235 



At 6.0. The stranger now escaped from the nest, and I put her 

 back among her own friends. 



The difference of behaviour to these two ants was therefore 

 most marked. 



The friend was gradually licked clean, and except for a few 

 moments, and that evidently by mistake, never attacked. The 

 stranger, on the contrary, was not cleaned, was at once seized, 

 was dragged about for hours with only a few minutes' interval, 

 by one, two, or three assailants, and at length made her escape 

 from the nest at the time when no other ant was out. 



Dec. 11. At 10 A.M. I again put in a friend and a stranger. 

 The friend was not attacked, and consorted peaceably with the 

 rest. I found her again all right on the following morning- 

 The stranger, on the contrary, was soon attacked and killed. 



Dec. 22. Repeated the same experiment. The. stranger was . 

 attacked and driven out of the nest. The friend was received 

 quite amicably. 



Dec. 26. Ditto. The friend was received ^.s usual. I lost sight 

 of the stranger, who probably escaped. 



Dec. 31. Ditto. In this, case the stranger, after being dragged 

 about some time in the nest, made her escape. But even outside, 

 having met with an ant accidentally, she was viciously attacked. 



Jan. 15. Ditto. 



Jan. 16. I put in two friends ; but thinking the preceding ex- 

 periments sufficient, I did not on this occasion add a stranger. 

 Neither of the friends was attacked. 



Jan. 19. Put in two friends at 11 a.m. Neither was attacked, 

 and the following morning they were all right amongst the rest. 



Jan. 22. Put in three friends, with the same result. 



Jan. 24. „ two |„ 



Jan. 26*. „ three „ „ 



These details are, I fear, tedious, but they may be worth giving, 

 because a mere statement of the general facts without particulars 

 would not convey so clear an idea of the result. The following 

 table shows it in a condensed form : — 



* Since this paper was read, I have continued these observations, viz. : — 

 On Feb. 11 put in two friends, on Feb. 12 three, on Feb. 13, 15, and 19, and on 

 March 11 and 12, one friend, on March 18 two, on April 21 one, and on April 

 22 and 23 two friends ; but in none of these instances were the friends attacked 



20* 



