RE-SELECTING SELECTED 

 CACTUS SEEDLINGS 



The selection of cactus seedlings, in 

 the course of the experiments leading 

 to the development of the new Spine- 

 less Cactus, was one of the most arduous 

 tasks ever performed. My hands were 

 never free from prickles for months 

 together, and the pain suffered was 

 almost intolerable. But ultimate suc- 

 cess compensated for the disagreeable 

 experience. 



