Dr J C Hinsey 1/1/81 . . . . after 1 1/2 years I still recall your mic note of May 8, 1979. But I put it aside to await receipt of the Gasser book before acknowledging. Unhappily, the book (perhaps lost in mail) just has never arrived. But I apologize nevertheless not to have responded sooner. Best wishes Joshua Lederberg [written in left margin, file copies]