622 THE AMERICAN NATURALIST [Vol. XLV 



(a) Control. Normal American upland blossom pinned 

 in position. 



(b) Control. Normal American upland blossom pinned 

 in position. 



(c) Haivasaki blossom entire (at b) in last experi- 

 ment. 



1 



I 











| 









It 



1 



I 





i 



I 



1 



1 



1 



i 



1 



iji 



3 



1 



j 



i 

 1 





I 



jJ 



i 









jl 







2 









2 













Experiment No. 20. — July 29. Observations con- 

 tinued one half hour, from 10:50 to 11:20 a.m.. Three 

 blossoms arranged in the same row as for previous ex- 

 periments. 



(a) Control. Normal American upland blossom pinned 

 in position. 



(b) Haivasaki blossom entire at (r) in experiment 19. 



(c) Control. Normal American upland blossom pinned 



in position. 



Data 



FOR E 





ENT N 













J 



I 



1 

 | 





g 









1 



J 



1 



ill 

 || 



I 



I 1 



i 



I 



1 



I 



1 



J 

 i 



i 



|l 





16 





1 





10 















