50 



NORMAL AND EXPERIMENTAL POLLINATION. 



in accord, it is significant that 166 visits were made to flowers with corollas 

 in contrast to 44 to those without. 



In the following experiments one raceme was left normal and one mutilated 

 by each of the various types of excision. In the tables the first number 

 in each column represents the number of visitors, the second the number 

 of flowers visited. The first observations were made on July 19 from 

 9 h 05 m to 10 h 05 m a.m. and the second on the same date from 10 h 05 m to 

 12 h 05 m a.m. 



Table 37. — Visits to normal and mutilated flowers. 



Bees flying to the community usually alighted upon flowers with corol- 

 las. Once landed, they passed on to the flowers in order, with little 



