DISTINaUISHING COLOURS. 299 



At 11.28 she came back to the honey on blue paper 

 I transposed them again. 



At 11.41 „ „ „ „ 



11.00 „ „ „ „ 



'■^' ° M » n » 



At 12.17 she came back to the honey on blue paper. 

 I now put green paper again instead of white, and 

 transposed the places. 



" At 12.27 she came back to the honey on blue paper 

 r transposed them again. 

 At 12.40 



12.50 „ „ „ „ 



!• „ „ „ ,f 



I'l" j> j> j> » 



At 1.25 she came back to the honey on blue 

 paper, and then to the green. I transposed them 

 again. 



At 1.40 she came back to the honey on blue paper. 

 I transposed them again. 



At 1.47 she came back to the honey on green paper. 

 „ 1.57 she came back to the honey on blue paper, 

 and then to the green. 



At 2. 6 she came back to the honey on blue paper. 



5> ^'l' 5J »> JJ »J 



The following day I accustomed this bee to green 

 paper. She made 63 visits (beginning at 7.47 and 

 ending at 6.44), of which 50 were to honey on green 

 paper. 



The following day, August 23, she began work, — 



