No. f,3S] 



THE BEHAVIOR OF BEES 



621 



At (rt) single detached petal pinned to leaf stem. 

 At (b) control. Normal cotton blossom pinned in 

 position. 



At (c) the cotton blossom with its single replaced 

 petal at (a) in preceding experiment. 



In this experiment the more exposed position (c) ap- 

 pears to be of considerable advantage to a blossom lo- 

 cated here, even though its normal appearance is greatly 

 changed by mutilation. The general form and appear- 

 ance of a cotton blossom, as a whole, does not appear to 

 play a very important role in initiating the procedure 

 of inspection by passing bees, since a single detached 

 petal receives quite as many inspections as a normal 

 blossom. 



Experiment No. IS.— July 29. Observations continued 

 one hour, from 8:20 to 9:20 a.m. In this experiment 

 three blossoms were used, as in previous experiments, 

 and arranged on consecutive plants in the same row. 

 A blossom of an Asiatic cotton (Hawasaki) was com- 

 pared with two ordinary American upland blossoms as 

 controls. 



(a) control. Normal American upland blossom pinned 



(b) Hawasaki blossom entire pinned in position. 



(c) control. Normal American upland blossom pinned 



Experiment No. 19. — July 29. Observations con- 

 tinued one half hour, from 9 :25 to 9 :55 a.m. 



