EXPERIMENTS ON COLOR-VISION OF THE HONEY KEE. 2" 



following facts : (i) If, in an open space between their hive and 

 a number of artifacts from which the bees are collecting honey, 

 you place an artifact of the same kind and color and supply it 

 with hoiH-y. it will be vi-ited by bees almost immediate!} l.\. [8, 

 29). (2 > When bees are collecting honey from red artifacts situ- 

 ated in two different Stations, one of which is much nearer the 

 hive than the other and beneath the line of flight of tin i 

 collet tin- from the more distant station, if all of the artifact^ 

 are removed from the more distant -tation. immediately the 

 number of visitors to the other station i- much increa-ed (Ex. 

 'I hi- was the case even when the artifact in the nearer 

 station ditl not contain honey (Ex. 30). Kmpty artifact- nl 

 another color than the honey-bearing i-"l--r \\<-re n-'t re-ponded 

 to iii tin- in. inner (Kx. 30.). 



< u lea\iir^ one of these artifacts the bee u-uall\ made an 

 orient in;.; flight. < )n the first few vi-it- tin- \\a- thorough l\ done. 

 I ing tin artifact and keeping about one centimeter tn m it- 

 surface, -he \\nld -idle, in a xig/ag line, around the -tincture 

 two or more times and occasional!) neuter it one or more tin 

 I In n -he \\oiild de-i libe one or more spiral-, pau-ing at certain 

 plai e- in the environment as though examining landmark-. In 

 -nine of the cases I was, apparently, one of the objects tlm.- 

 -t mi in i/e<l. In harmony with her other beha\ ior. it -eems plan-- 

 l-ile to interpret this as an act by which menior\ |iicturesof the 

 en\ iidiinieiit ate formed. 



llo\\ minute are the details that bees obser\ e 1 am not pre- 

 pared to -a\; but that the\ do observe details is indicated by the 

 following observations. i In the bo\e- u-cd in the experiments 

 !' > i i - I \ . t he t ra\ 5 of t he 1 -t >\e> used were entered, frt un t he 

 portico, by mean- of an e< > ntric opeiiin^. In most of the 1" 

 thi-dooi\\a\ \\a- i< ular, in others it was circular, \\lnn 



a bee ln-t appioached one of the-i- 1 .o\. 5, -he had to search tor 

 the entrance. After a te\\ trip- -he \\oiild land on the portico 

 directK in front of the entrance, and. in -ome . asi 5, she \\oiild 

 ll\ into tin- tra\ \\ithoiit e\eti pau-inu . .n the jmrtico. u I or 

 about an hour bee!- had been collecting hone\ from -ome red 

 artitai t-. It -eeined that llearK all of the bee- that \i-iled that 

 of the field \\ere collet tin- from t lm-e artifact-. Alonu-ide 



