420 COMMUNICATION. 



1.26 came to honey ; 1.28 away. Interval 15 minutes. 



1.40 1.42 12 

 1.57 2. 2 15 

 2.10 2.13 8 

 2.25 2.30 12 

 2.45 2.56 15 



She buzzed about at the other window for a few 

 minutes, which made the interval longer than 

 usual. 



3.13 came to honey ; 3.18 away. Interval 17 minutes. 

 3.29 3.31 11 



3.41 3.45 10 

 3.49 3.52 4 



4. 2 4. 6 ,,7 

 4.19 4.22 13 

 4.29 4.33 7 

 4.40 4.44 7 

 4.51 4.53 



5. 4 5. 6 ,,H 

 5.16 5.20 10 

 5.32 5.35 12 

 5.45 5.50 10 



It will be seen that the intervals of her absence 

 were remarkably regular. On one occasion, indeed, 

 she was only away four minutes ; but this time I think 

 she had been disturbed, and had not provided herself 

 with a regular supply of food. 



The number of visits was fifty-one in eleven hours 

 and a half. I tried whether she would be in any way 

 affected by a dead wasp, so I put one on the honey ; 

 but she took no notice whatever. 



I observed with other wasps, that when the open 

 window was not the shortest way to their nests, they 

 had a great tendency to fly to that which was in the 

 right direction, and to remain buzzing about there. 



