67s 



THE A MERICAN X ATI' E A Els']' 



[Vol. XLIV 



extreme right so that the order was yellow, black, red, 

 blue. The bee returned to the blue. The red and blue 

 were again transposed, the bee returned to the black, but 

 soon left it for the blue. Black and blue were then trans- 

 posed, the bee returned to the blue. I next transposed 

 yellow and blue, bringing blue to the extreme left, the 

 bee returned to the red. No change was made in the 

 order of the slides, the bee returned to the yellow. The 

 slides were again left unchanged, the bee touched on 

 black, then on red, but finally alighted on blue. Eed and 

 blue were transposed so that the order of colors was red, 

 yellow, black, blue. The bee returned to the black. No 

 change was made in the slides, the bee returned to the 

 bine. 



During the first five visits, when there were only blue 

 and red slides, the bee returned four time to the blue and 

 but once to the red. This single exception is not without 

 value, since it shows that the bee had the power of choice, 

 and that its behavior was not mechanical, or that of a re- 

 flex machine. Daring the next three visits blue, red and 

 yellow slides were employed and the bee returned every 

 time to the blue. Daring the following thirteen visits 

 four slides were used (blue, red, yellow, white in two 

 visits; blue, red, yellow, black in eleven visits), and the 

 bee naturally showed greater hesitation and an increas- 

 ing tendency to visit <>l her colors than blue. Still it took 

 up its load eight times on blue to once on white, once on 

 red, once on yellow, and twice on black. In every in- 

 stance where the bee selected another color than blue, it 

 will be observed that it was after the slides had been 

 transposed, or a color had been changed; and that with 

 one exception it again returned to blue on the next visit. 

 Of the total twenty-one visits fifteen were made to the 

 blue, but not more than two to any other color. The bee 

 steadily endeavored to remain constant to the blue, 

 though this involved both loss of time and effort; and the 



member that before the close of the experiment the bee 



