PRESENT DIFFICULTIES IN THE THEORY OF HYPERFINE STRUCTURE - article in CONVEGNO DI FISICA NUCLEARE , Ottobre 1931 with the First Ever Mention of the existence of the Neutrino by Pauli (Near Fine condition!)

Roma 1932 first edition. Reale Accademia d'Italia . sm4to wraps. Convegno di Fisica Nucleare of Ottobre 1931. 173p. Very Fine fullpage photograph frontispiece with an overlay identifying the scientists which include most all of the important physicists of the 1930s. Full page Articles in German and in English. ***In Goudsmit's article on pp. 33-49, he reports on Wolfgang Pauli's work stating on page 41: "At a meeting at Pasadena in June 1931, Pauli expressed the idea that there might exist a third type of elementary particles besides protons and electrons, namely "neutrons". Truly a LANDMARK IN THE HISTORY OF PHYSICS. NEAR FINE condition, just slight cover wear. no owner marks. Text Fine and clean. Pictures available on request.