Bees and Wasps. 73 



5 P.M. to 6 P.M., to get accustomed to it. During 

 this time she continued her usual visits. I then 

 put the honey and the coloured paper about a foot 

 apart ; she returned first to the paper and then to 

 the honey. I then transposed the honey and the 

 paper. This seemed to puzzle her. She returned 

 to the paper, but did not settle. After she had 

 hawked about for 100 seconds I put the honey on 

 the red paper, when she settled on it at once. I 

 then put the paper and the honey again 18 inches 

 apart. As before, she returned first to the paper, 

 but almost immediately went to the honey. In a 

 similar manner I satisfied myself that she could see 

 yellow. 



10. Again, on August 18 I experimented on two 

 wasps, one of which had been coming more or less 

 regularly to some honey on yellow paper for four 

 days, the other for twelve coming, that is to say, 

 for several days the whole day long, and on all the 

 others, with two or three exceptions, for at least 

 three hours in the day. Both, therefore, had got 

 well used to the yellow paper. I then put blue 

 paper where the yellow had been, and put the 

 yellow paper with some honey on it about a foot 

 off. Both the wasps returned to the honey on the 

 blue paper. I then moved both the papers about 

 a foot, but so that the blue was somewhat nearer 

 the original position. Both again returned to the 

 blue. I then transposed the colours, and they both 

 returned to the yellow. 



