ed- difference in the effect of the pollen from separate 

 flowers of the same plant, compared with the effect of the 

 pollen from the same flower. The average percentage of 

 flowers producing pods is slightly less, while the numlaer of 

 mature seeds per pod is slightly more from the flowers fertil- 

 ized with pollen from other flowers of the same plant , than 

 from flowers of the same plant, than from flowers fertilized 

 with their own pollen. The total number of seeds per pod 

 developing from the two different methods of fertilization is 

 almost exactly the same. 



Pods F ormed Wh en Stigma a nd Pollen 3^o_Mot Come In to 

 tiontact~ Wi T^rA ny~Ohject When " Yhe~~fIowe r Ts Trippe'ct . 



Two experiments were performed in 1910, to find out what 

 the effect would he when the flower is tripped, "but when the 

 stigma does not come into contact with the surface of the 

 object tripping the flower or in contact with the standard of 

 the flower. In the first experiment the standard was removed; 

 then the flower was carefully tripped in such a way that the 

 stigma and pollen did not come in contact with any object 

 during the process. In the second experiment, the flowers 

 were tripped by cutting the lower part of the anterior side of 

 the keel with a sharp razor, so that the tip of the keel re- 

 mained enclosing the anthers and stigma moving up with the 

 stamina,l column when the flowers were tripped, thus prevent- 

 ing the stigma and anthers from emerging from the inside of 



(26) 



