CALIFORNIA INSTITUTE OF TECHNOLOGY PASADENA, CALIFORNIA DIVISION OF BIOLOGY May 18, 1962 Dr. Joshua Lederberg Department of Genetics Stanford University Medical Center Palo Alto, California Dear Josh: This is to tell you that I have agreed to serve as co-experimenter on Gil Levin's "Gulliver" life-detection project. It seems that the Gulliver has had no official standing up to nowe--i.e., it was not even on the tentative list of experiments being considered for Mariner B. NASA wanted to have a professional biologist attached to the experiment, in order to give it status with the scientific commnity and with themselves. I have agreed to take this responsibility, sinc@ I think the Gulliver is a well-designed device that deserves to be considered for a Mars mission. IT am sure that you agree with this, even though you may personally prefer the Multivator. Hope you had a pleasant trip to Japan. Yours ; {VW Norman Horowitz NH/oe