I wish to acknowledge the help of all members of the Committee 

 on Plant Breeding and Genetics, and especially that of H. F. Robin- 

 son and G. F. Sprague who contributed greatly to the final 

 development of the program. 



I especially wish to record my own as well as the Committee's 

 appreciation and thanks to all of the formal participants whose papers 

 are presented here; to the discussants, M. M. Rhoades, B. S. Strauss, 

 W. M. Myers, I. J. Johnson, and H. H. Kramer; to the Editor, James 

 D. Luckett; and, finally, to S. G. Stephens who undertook the major 

 task of developing the resume, for their contributions to the 

 Symposium. 



R. P. Murphy, Chairman 



Committee on Plant Breeding and Genetics 



R. A. Brink H. F. Robinson 



W. M. Myers W. R. Singleton 



F. L. Patterson G. F. Sprague 



J. D. Luckett, Editor 

 R. P. Murphy, Chairman 



VI 



