EXPKKIMKN COLOR-VISION OF THE HONKV HI I . 279 



These experiments prove that, to tin- bee, my colored di-cs, 

 my colored < -onim opias, and my colored boxc- were something 

 more i ban mere -en-ations; it seems t<> me that they were true 



I it-. T<. the bees those things had acquired a mean: 

 tlio-.- -trance n-d things had come to mean "honey-bean 

 and th' :tr^e green things and strange blue tiling- had come 



to in. -an "not-honey-bearers." Hence, whenever the bees -aw 

 the n-d tiling-, they made the appropriate movement- tor -ecurinji 

 the lioiie\ , and when they saw the blue thin-- . .r the ureeti thi 

 the\ pa i-d on. This explains why, in the experiments oi series 

 One, di- - -i\ centimeters in diameter and \\ell -upplied with 

 hone\ i ould remain in the presence of hundred- of bee- \\ ith.mt 

 b.-in^ r. -ponded to by them; and yet, tho-e -aim- bee-, a te\\ 

 da\- lai-r, when those things had acquired a meaning, \\oiild 

 em. i m\ red boxes even before I had had an opportunit\ to 

 .ittai h them to their supports. In their past experience tl 

 tiling had never accjuired a meaning, while the -mall blo--.>in- 

 ot the melilotus had come to mean "honey-bear. -i-": lum. the> 

 tened ly the feast that had been prepared for them and ru-hed 

 i he meager supply of nectar in the blo--un- of the \\hite 

 -\\iet clover. 



Although Plateau's conclusions are diametrically oppo-ed io 

 the re-ults of this series of investigations, yet the facts related 

 b\ him are in accord \\ith them. 



While proving that bees have color-vision, these experiments 

 thio\\ no liyjn upon the color preferences of in-ects. That has 

 not been the purpose of these researches. The aim has been to 

 an-\\er the i|iie-tion. C 'an bees distinguish colors? The experi- 

 ment- seem to demon-! rate that foraging bees have percepts and 

 that t\\.. i.i, tors \\hich enter into those percepts are color sen-a- 

 tion- and olfactor\ -eii-at ions. 



Mo., 



July is. i.. 



