196 HYBRIDIZING AND CROSSBREEDING 



four. A piece of glass and a camel's hair brush are usually 

 employed to transfer the pollen, but we use our thumbnail 

 and a dull knife blade, which we find more convenient 

 and just as efficient, care being exercised not to injure the 

 stigmas. 



y. J. Etc. Sfat 



Single Carnation Spread to Show Sexual Organs and Petals 



Before doing any crossing, the operator should make 

 a careful study of the structure of the pod containing the 

 tinv ovules which, when fertilized, will produce the seed. 



