not to have a single infection from Ustilago 

 among the many thousands of individuals of 

 Lychnis dioica which have been involved in 

 my cultures during the past seven years, I do 

 not care to take up at present the here sug- 

 gested line of investigation upon ustilaginized 

 females. I do not wish to jeopardize by im- 

 porting infected material, the solution of many 

 other genetic problems now under investiga- 

 tion, but I hope that Professor Doncaster or 

 some one else who is in a position to do so, 

 will give attention to breeding from hermaph- 

 roditic females if this proves to be technically 



possible - GEO. H. SHULL 



