BEES AND WASPS SENSE OF DIRECTION. 147 



six journeys, the way between the postern entrance and 

 the food. 



But the following observation on a wasp is in this con- 

 nection the most conclusive. 



A marked wasp visited honey exposed in the room 

 before mentioned. ' The next morning she came 



A.t 7.25, and fed till 7.28, when she began flying about the 

 room and even into the next ; so I thought it well to 

 put her out of the window, when she flew straight 

 away to her nest. My room, as already mentioned, 

 had windows on two sides ; and the nest was in the 

 direction of a closed window, so that the wasp had to 

 go out of her way in going out through the open one. 

 At 7.45 she came back. I had moved the glass containing the 

 honey about two yards ; and though it stood conspi- 

 cuously, the wasp seemed to have much difficulty 

 in finding it. Again she flew to the window in the 

 direction of her nest, and I had to put her out, which 

 I did at 8.2. 



At 8.15 she returned to the honey almost straight. 8.21, she 

 flew again to the closed window, and apparently could 

 not find her way; so at 8.35 I put her out again. It 

 seems obvious from this that wasps have a sense of 

 direction, and do not find their way merely by sight. 

 At 8.50 back to honey, and 8.54 again to wrong window; but 

 finding it closed, she took two or three turns round 

 the room, and then flew out through the open 

 window. 



At 9.24 back to the honey; and 9.27 away, first, however, 

 paying a visit to the wrong window, but without 

 alighting. 



At 9.36 back to the honey, and 9.39 away, but, as before, going 



first to wrong window. 

 She was away therefore 9 minutes. 

 9.50 9.53 away, this time straight. 11 



10 10. 7 11 



10.19 10.22 12 



10.35 10.39 13 



10.47 10.50 9 



11. 4 11. 7 14 



11.21 11.24 14 



11.34 11.37 10 



11.49 11.52 , 1 



