(1) Sul calcolo degli spettri degli ioni. (2) L’effeto Raman nelle molecole e nei cristalli. Offprints

1930. Fermi, Enrico (1901-1954). (1) Sul calcolo degli spettri degli ioni. Offprint from Memorie della Reale Accademia d’ Italia: Classe di scienze fisiche matematiche e naturali 1, Fisica no. 2 (1930). (2) L’effeto Raman nelle molecole e nei cristalli. Offprint from ibid., Fisica no. 3 (1932). Together 2 offprints. Rome: Reale Accademia d’ Italia, 1930-32. 251 x 179 mm. (unopened). Original gray printed wrappers, sunned, wrappers of (2) splitting at spine. Some toning, but very good. First Separate Editions. Between 1930 and 1934 Fermi published a series (truncated) of five papers describing his investigations of the theory of the hyperfine structure of spectral lines (first proposed by Pauli in 1923) and the nuclear magnetic momenta; we are offering two of these papers here. Fermi’s investigations culminated in his explanations of beta decay and the introduction of the Fermi constant. Fermi received the Nobel Prize in 1938 for his work on induced radioactivity by neutron bombardment and his discovery of transuranic elements. Fermi, Collescted Papers, ed. Segrè, 63, 71. Norman 780-781. . (Inventory #: 44349)