EXPERIMENTS WITH MYRMICA AND LASIUS. 163 
At 6.31 p.m. she returned and took another. Again 
6.33 33 9 
6.35 ‘5 5 
6.36 ‘s 9 
6.37 5 9 
6.38 5 
6.40 - a 
6.41 5 * 
6.45 °° 55 
6.47 5 ‘s 
6.49 is <5 
6.50 a Pa 
6.51 2 rn 
6.52 4 Pa 
6.53 %” $8 
6.55 55 38 
6.56 9 $3 
6.57 7 a 
7. 0 5 35 
71 | ‘3 . 
7. 2 5 5 
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 pupe 
gone. During the time she was watched, however, she 
brought no other ant to assist. 
I alsov made similar experiments with Myrmica 
ruginodis and Lasius niger, imprisoning (as before) 
all ants that came, except the marked ones, and with 
