EXPERIMENTS WITH MYRMICA AND LA8IUS. 163 



At 6.31 P.M. she returned and took another. Again 



6.33 „ „ 



6.35 „ „ 



6.36 „ „ 



6.37 „ „ 



6.38 „ „ 

 6.40 



6.41 



6.45 „ „ 



6.47 



6.49 



6.50 „ „ 



6.51 „ „ 

 6.52 



6.53 „ „ 



6.55 „ „ 



6.56 „ „ 



6.57 „ „ 

 7. 



7. 1 



'• 2 „ „ 



7. 6 „ „ 



After these 45 visits, she came no more till 8 p.m. ; 

 but when I returned at 10 p.m. I found all the pupae 

 gone. During the time she was watched, however, she 

 brought no other ant to assist. 



I also made similar experiments with Myrmica 

 ruginodis and Lasius niger, imprisoning (as before) 

 all ants that came, except the marked ones, and with 



M 2 



