Febr. 29, 1952 Bear Dr. Haddow: I am delighted to learm that you will be at the Cinnoinnati meetings, and look forward to meeting you there. Ten ast olerning to talk cancer, only "pure" microbial genetics. In act*ticn to =e srevions work on genetie recombination (sexual) in =, coli, Tbew to cotton the tro other min tonies summarized in the enclosed prvgrass venpyt, | shold be delighted if you intend to relate the genetics of the norel diseussitona to cancer problems. Sincerely, Joghue Lederberg