HEARING IN BEES. 423 



at the honey on the musical box, and none at the other. 

 After this we had a week of rain. The next fine mom- 

 ibg I again put out the musical box with some honey, 

 and at a distance of about 15 yards a similar quantity 

 of honey on a bit of glass on the grass. In half an 

 hour there were several bees at the honey on the 

 musical box, and none on the other. 



I had intended to repeat this several times for 

 greater security, but was unfortunately prevented by 

 bad weather. The observations, however, indicate, as 

 far as they go, that the bees did connect the presence 

 of the musical box with that of the honey, and were 

 guided by it, even if it were not playing, so long as 

 they could see it, but that if they could not see it, 

 even though it were playing, it did not assist them. 



