ISTITUTO DI MICROBIOLOGIA E FISIOLOGIA VEGETALE Pavia, February 14, 1978 UNIVERSITA DI PAVIA VIA SANT’EPIFANIO, 14 27100 PAVIA (Italy) Prof. J. LEDERBERG Department of Genetics Stanford Universit y School of Medicine Stanford University Medical Center STANFORD Calif. 94305 Dear Josh, You always manage to surprise us. Much as we hate the idea of losing our "Californian connection", we hope that your return East will result in more frequent encounters, on either side of the Atlantic. Yes, the way it has been snowing for the past two weeks, you could literally ski (cross-country, at least) ¢n our backyard...... Very test regards to all of you from all of us. Yours sincerely, oy Ce Le Orio Ciferri _—_—_—_—_—O