No. f>;5S ] 



THE BEHAVIOR OF BEES 



611 



a suspicious blossom before passing on. From this test 

 it is evident that the petals alone, as used at (c), were 

 quite as efficient in inviting inspection as the normal 

 blossoms themselves. The blossom at (h) received fewer 

 inspections, probably because it was less readily per- 

 ceived among the leaves which nearly surrounded it. 

 The bee visits were distributed as follows: 



I 

 1 



1 

 I 



i 



! 



, 1 

 | 



ill 

 II 



i 



|1 



j 



f 



7 



W (S 1 



(«) 



82 













4 





2 



Experiment No. 2.— July 26. Time of observation- 

 one half hour, from 10 minutes past 10 to 10:40 a.m. 

 Blossoms in the triangular arrangement as before. See 

 diagram. 



At point (a) same blossom with petals removed. 



At point (b) same blossom entire as a control. 



At point (c) petals alone as in preceding experiment. 















1 



I ? 



I 



t 1 V 



f fill li 



} | if 

















The removal of the corolla of (a), which in the past 

 experiment received 81 inspections, reduced the number 

 of inspections at once to 4 as compared with 62 inspec- 

 tions of the detached petals at (c). 



Exactly similar results were obtained by Darwin in 



