7. 

 that are gathered are oovered with ripe pollen. It is 

 advisable to plaoe a whole anther in eaoh flower that ie 

 to be pollinated. Pollen grains are ell that is necesse.ry 

 if properly placed on the stigma of the flower. Pollina- 

 tion is accomplished by carefully opening the flower either 

 with forceps or by gently pressing the upper end of the 

 glumes with the left forefinger while holding the base 

 firmly and placing ripe anther on the stigma. 



There are many circumstances that mitigate against 

 success in this work, but with sufficient care crosses can 

 be secured in either direction with all the varieties re- 

 ported in this paper. Crosses with wheat and emmer are 

 considerably more difficult than wheat crossed with wheat. 

 This is probably explained by the fact that emmer is some 

 distance from wheat speaking from the standpoint of evolu- 

 tion, but we would assume that it is closer than rye as 

 crosses with rye are very difficult to secure and all that 

 have been reported are sterile. 



The success of the crosses herein reported may be 

 given briefly ss follows: 



