EXPERIMENTS ON COLOR-VISION OF THE HONEY DEE. 259 



the destroyed nectary by honey; (3) that it suffices to attract 

 numerous insects if one puts honey on or in normally anemophil- 

 ou- flowers, simply green or brown in color, which an- normally 

 pr, -ti< -.illy invisible and almost never visited by in-ivts; and 

 1 thai the visiting of flower- artificially made- of fresh green 

 leaves and containing honey demonstrate-, plainly the role of 

 i In sense of smell. 



"It must be said that, despite main ju-t critici-m^ that may 

 be madf on the character of hi> experiment-, Plateau has made 

 necessary more experimentation for the relief of the general 

 theory that floral adaptation of (dor i- due t.. c<.lor prefi fences 

 of in-eei \ i-itors." 



Forel nd von Buttel-Reepen 1 are opposed to Plateau 1 - \ ie\\ -, 

 but Bet he' is in accord with Plateau. 



I ' ; -t his conclusions, Forel repeated, in the follov. in- manner, 

 Plateau's dahlia experiment. ( I j Paper dahlias were di-tribi 

 amoii- some dahlias from \\hich a large number of bees \\eie 

 e <\\ct tin^ honey. The bees paid no attention to these artit.n ts. 

 Honey was placed on these artifacts, and. }<\ -killtul manipu- 

 lation, brought to the attention of one of the bees. Immediately 

 that bee neglected the real dahlias for these artificial <; 



(iradually all of the bees neglected the dahlias for those 

 an it. n t- \\ it h their inexhaustible supply of honey- inexhaustible 

 luse ii was constantly replenished by Forel. 141 The artifacts 

 \\eii remo\ed. After a lapse of several days, similar artifacts, 

 bin i I'liiaininv; no honey, were scattered among those dahlias. 

 Immediate!) tin- bee- n ejected the dahlias for the artifacts, 

 \\hich the\ -e. ii dud for hone\-. I'orel thinks this experiment 

 >ln>\\- that bees ha\e -pace, form and color perception. 



\ on Hut iel l\. . ] M n ba-e> hi> opposition to Plateau's \ie\\- 

 larueK upon information furni-hed him by Herr Roth, leader of 

 the Haden bee-keepei- - liool. and a teacher named Staeliclin. 



ii-l. Ain;.. "l>ir p-\i In-, ln-ii l-'.i -i del Ai:i' Uen und i-ini.o-r am!- 



Iii-i-lxii-n." Miii-iu-lii-ii. I'j'ii. "Ants and - tlirir In-iiiu-i-." .\/. ;:-.'. \-nl. i }. 



. ) 



-Miii! ii, II. von, ">md dit- Mii-in-ii ReSex-maschinen?, I-!\i"-iinu-iit;il 



Mi-iti.iv;,- /ui Minli>i;ii- <kt 1 1. mi.nlii.'iii-." Biul. Ctnlralhl., Bd. -'". n;uo. "An- i 

 Rctl. \ \l.i. liiiif- '" iran-l.itril \>y Maiy 11. (ivi-li-r. Medina. <>.. iv 



*Bftlu'. A.. "I>ic Hi-iinlalii^kcit drr . \nn-i-i-n und Hii-nni /inn Thril naoh ni-ucn 

 ii-hrn." / : '. , I'.'l. 22, IQO2. 



