EXPERIMENTS ON COLOR-VISION OF THE HONEY BEE. 263 



On leaving, each hovered a moment above the disc, circled around 

 it. made two or more short circles about the weed, then, ascend- 

 in^, depart. <!. In about five minutes, two of the bee- had re- 

 turned to the weed. They did not visit any ot" tin- blossoms; 

 hut, alter circling in the vicinity of the disc for a moment, 

 alighted on ihe disc and began to imbibe the honey. They 

 arri\ed I.--- ih.m half a minute apart. Alter >eciiring a supply 

 of lione\ , they <leparted in the same manner that they did before. 

 In It -- than ti\e minutes, the two had returned. < >ne . .f th. 

 alter arming at disc one, left it and went to di-c \\\ and ob- 

 tained honey. These three bees were watched carefully for half 

 an hour. In that time fourteen visits were made to the red <li 

 ele\en io <li-c one and three to disc two. No vi-it- \\ere made 

 i" disc three. On two occasions three and on two other occa- 

 sions t\\o bees were on disc one at the -ame time. On each of 

 the-.- occasions, before departing for the hive, the bee- al\\a\- 

 explored the neighborhood of the disc. 



I or the half hour or more that I was conducting this experi- 

 ment, I was too much occupied to pay anj attention to the di 

 on the other weed. I now watched them continuous!) f<>r fifteen 

 minute-. Although the weed was alive with U es, no bee vi-iie.| 

 the red <li-c-. Had any of the bees discovered tho-e di-c- and 

 had tin \ begun to collect honey from them, some of them should 

 ha\e made a return trip while I was watching. It i- reasonable 

 to conclude that no bees hail visited them. 



Thu-. although over a dozen discs, well supplied with lumey, 

 \\ere e\po-ed. on weeds that were alive with bee-, for fully three 

 hour-, \et onl\ tliree bees visited those disc- and their vint- 

 \\ere confined to two of them! 1 



I \i'i KiMi-\i 7. On leaving for home, all of the discs were rc- 

 n:, >:;-(l from the field except the three from which (lie l>ces were collect- 

 ing honey, (hi those discs I placed all of the honey that they icould 

 hold. Ihi- \\a- done hoping that, before dark, other bee-, by 

 imitation, would learn to collect honey from those di-< 



tric<l i\\\< .-aim- t> r pe of experiments at oth^r tim.--. Altliiiv;li 

 -i.ilil<- time aluay- rl.i|r.l l.i-i.ire the di- nded to 1'V tin- l-t-~. yt-t the 



timr \va- -rlili'in as Imij; a- thi>. 



