In article <2hjl2s$rmp at mserv1.dl.ac.uk>, GORDON BETTS <JB5369 at ETSUACAD.ETSU.EDU>
says:
>.. THEREFORE, COULD SOMEONE EXPLAIN "LEDERBERG'S" MODEL MENTIONED BY FORSDYKE
>IN REGARDS TO COUTINHO'S PAPER.
Lederberg's classic paper is in Science vol 129, 1649 (1959).
Sincerely, D.R. Forsdyke