[. . .] Sept 30 Dear Mr. Lederberg, I have received your last letter and this is to confirm that I'll be in Madison the nights of October 4 5 and 6. According to your suggestion I will call you from the airport on October 4 at about 11.30 a.p. and ask the limousine to bring me directly to your laboratory. I asked some people to write me at your address and I would be very gratefull if you could keep my mail until my arrival Your sincerely, Giovanni Magni