2/O C. H. TURNER. 



EXPERIMENT 21. Side by side, on one of the branches of the 

 melilotus weed upon which most of these experiments -were conducted, 

 I arranged a red and a green cornucopia, and placed honey in each. 



During the first five minutes that these were under observation 

 twenty-five bees entered the red cornucopia and three the green. 



EXPERIMENT 22. On rods erected in the open space between the 

 experiment weed and the hive, and about three feet from disc C of 

 experiment 20, a red and a green cornucopia were arranged side by 

 side. Each contained honey. 



During the first five minutes that these cornucopias were 

 watched, sixteen bees entered the red cornucopia and four the 

 green. 



EXPERIMENT 23. The green cornucopia of experiment 22 was 

 replaced by a red cornucopia which did not contain, and never had 

 contained, honey. This placed two red cornucopias side by side, 

 one containing honey and the other empty. 



During the five minutes that these cornucopias were under 

 observation, so many bees entered the red cornucopia which 

 contained honey that it was impossible to count them; five en- 

 tered the empty red cornucopia. 



The empty red cornucopia was now placed where the one containing 

 honey had been and the one containing honey placed in its stead. 



During the first five minutes that they were observed, so many 

 bees entered the cornucopia which contained honey that it was 

 'impossible to count them; many bees hovered around the empty 

 cornucopia, but none entered. 



The cornucopia that contained the honey was removed, the bees 

 shaken out, and the cornucopia put out of sight. This left an empty 

 red cornucopia in a part of the field which, for more than half an 

 hour, had contained at least one red cornucopia which was well 

 supplied with honey. 



At first the bees circled around the cornucopia, presently one 

 entered and then left immediately. Within ten minutes twenty- 

 five bees had entered the cornucopia. (This does not mean twenty- 

 five different bees, for the same bee entered more than once 

 and was counted each time.) At first each IKV left as soon as 

 she had reached the inner depths of the cornucopia. Soon, how- 

 ever, the bees began to enter so rapidly and in such large numbers 



