[MANHATTAN PROJECT]: ROSSI BRUNO (1905-1993) Italian experimental physicist who worked on radar at the MIT Radiation Laboratory during World War II and played a pivotal role in the Manhattan Project, heading the group at the Los Alamos Laboratory that carried out the RaLa Experiments. A brief T.L.S., Bruno Rossi, one page, 4to, Cambridge, Massachusetts, 1st March 1948, to Henri Corbiere, on the printed stationery of the Laboratory for Nuclear Science and Engineering at the Massachusetts Institute of Technology. Rossi thanks his correspondent for their letter and returns the answers to the questions contained in his questionnaire. Together with the questionnaire referred to, one page, 4to, n.p., 1st March 1948. At the head of the page appear Corbiere's three questions, in manuscript, '1. Were your "scientific debut" easy or difficult? 2. Did means of living….enable you to make yourself known in science? Or did you live solely through your work of laboratory? 3. What work (or what discovery) made yourself more famous? Which do you consider as your masterpiece?' and beneath Rossi has provided his answers, in full, '1. Fairly easy. 2. I lived solely through my work. 3. I don't know'. Some very light, minor age wear, VG, 2