EXPERIMENTS ON COLOR-VISION OF THE HONEY BEE. 269 



levels. Half of these were red and half were green and they were 

 arranged in pairs, one red and one green constituting a pair. The 

 openings of both members of a pair faced in the same direction. All 

 of these cornucopias were attached to parts of the weed. The red 

 ones were supplied with honey, but the green were not. 



Immediately .ifi<-r I had pinned the tir-t red cornucopia to 

 tin- l>u-h, .1 her entered it and began t<> collect tin- honey. Two of 

 thr-r ]),iir- \\ere kept under observation for nearly an hour. 

 During that time numerous bees entered the red cornucopias, 

 luit not .1 bee eniercd the green ones. 



1 ,\IM KIMI \ i Jo. Five red corn nco pi >nt<iining honey, 



wrrc arranged on rods in the following manner: A, in a patch of 

 melilotns a/iout ntty yards further from the hire than th< 

 that were the site of experiment nineteen; H, ('. />. arranged in a 

 lin> <>n the patch that was the site of experiment nint 



inls the hire, H twenty feet from the patch, (' thirt 

 and /) fifty feet; I .' yards from th< patch mentioned 



a/>ore in a line which, at the ex/ <'/, made an an^i* 



45 with the line containing B, C, and D. 1 these cornucopias 



ited once nery twenty minutes, at which tin: .matched 



closely for three minutes. The number oj n the cornucopia 



when I arrived were counted, the number to arri:< I did ; 



noted anil the sum of the two numbers recorded. 



The results of the above experiment are ivionK-d in the |dl- 

 t.il 'le : 



< i\\ 



N.I ,-ia. 



N n n 1 1 n i I on trip i 



Nuuilii : I "ii trip 2 



Niiinl" s I nil trip 3 



Niiniln 1 mi trip 4 



! "ii trip 5 



Niirnl"-: ! "ii trip 6 



of bees obsiT\i-.l ..n tri|i 7- 



Bel ; I<M\ \\\\i tin- IMT in.i -itim; tli^lit. Sin- i-xaiiiiru-il the < 



i.i "ii all >ulr- -inic-. n-i-iui'ii-'l it thro- tim.-s. .in. I. -iiibing 



ic\v i-iir vi-. tlr\\ ,i\\.iy t" tin- hi\ 



1 I:* re \\.i- .in inti-r\.il "! an Imur lu-turcn trip -ix an'l trip -rvni. 

 >T\vii ntlii-r IM-I-- h"\i [! in ai. luit ili.l n.it i-mrr. Tin- "nc that t-iui-rt-d l.-u 

 iinincili.iti-ly. Tin- i-i>riuio>pia \v.i~ ~\var riling with ant-. 



X nii-.ui- that tin- IT< wen- so numerous that it wa< iinp"--il>li- tn make an ac- 

 curate i-niint. 



