Thank you letter, dated October 8, 1952, from Enrico Fermi to Robert E. Marshak. Fermi is thanking Marshak for sending him a note on s-wave scattering…
Letter, dated May 11, 1954, from Enrico Fermi to Robert E. Marshak in response to Marshak's previous letter dated May 5, 1954. The letter is about how…