512 siE JOHN lubboce: on ants, bees, and wasps. 



about a foot, but so tbdt the blue was somewhat nearer the ori- 

 ginal position. Both again returned to the blue. I then trans- 

 posed the colours, and they both returned to the yellow. 



Very similar results were given by the wasp watched on the 

 11th of September. After she had made twenty visits to honey 

 on blue paper, I put it on yellow paper and moved the blue 12 

 inches off. She came back to the yellow. I then put vermilion 

 instead of yellow ; she came back to the vermilion. I transposed 

 the colours ; she came back to the vermilion. 



I put white instead of vermilion ; she returned to the blue. 

 ,, green „ white 



„ orange „ green „ „ 



I transposed the colours „ „ orange. 



I put white instead of orange „ „ white. 



,, green „ white „ „ blue. 



„ purple „ green „ „ purple. 



„ orange „ purple „ „ orange. 



„ green „ orange „ „ green. 



I transposed the colours „ „ blue. 



green. 



So far therefore she certainly showed no special predilection 

 for the blue. I then left her the rest of the day to visit honey 

 on blue paper exclusively. She made fifty-eight visits to it. The 

 following morning I opened my window at 6.15, when she im- 

 mediately made her appearance. 



I let her make ten more visits to the honey on blue paper, 

 moving it about a foot or so backwards and forwards on the 

 table. I then put orange paper instead of the blue, and put the 

 blue about a foot oif. She returned to the orange. 



I put yellow instead of orange ; she returned to the yellow. 

 „ vermilion „ yeUow „ „ vermilion. 



„ white „ vermilion „ ,, white. 



„ green „ white „ „ green. 



I transposed the colours ; „ „ blue. 



I now put vermilion instead of 

 green, and moved both of them a 

 foot, but so that the vermilion was 

 nearest the window, though touch- 

 ing the blue ; „ „ vermilion. 



Again, September 11, I marked a Avasp. She returned to the 



