FERMI, Enrico. A collection of 44 offprints, mostly from Rendiconti Reale Accademia Nazionale de Lincei and Zeitschrift für Physik, including 8 duplicates. Most Rome and Berlin, 1922-1939. 8o. Most disbound, some in original printed wrappers.
As a general rule, early Fermi offprints are very rare. This is one of the largest collections of his offprints ever offered for sale. The collection covers chiefly his work in Italy before his immigration to the United States in 1939.
Relativit... -- Sopra i fenomeni che avvengono in vicinanza di una linea oraria. Offprint from: Rendiconti Reale Accademia Nazionale de Lincei, Vol. XXXI, serie 5a, 1o sem, fasc. 1o. Rome, 1922. FIRST EDITION, offprint issue. "In 1922, while still in Pisa, Fermi had obtained remarkable result in general relativity by showing that, in the vicinity of a world line, space in Euclidean. This theorem is Fermi's first accomplishment of permanent value; it is contained in the paper 'On the Phenomena Occuring near a World Line' " (Segrè, Enrico Fermi, Physicist, 22). The so-called "Fermi Coordinates" that Fermi introduced in this paper were extended by various other scientists. Fermi, Collected Papers, no. 3.
Sopra la teoria di Stern della costante assoluta dell'entropia di un gas perfetto monoatomico. Offprint from: Rendiconti Reale Accademia Nazionale de Lincei, Vol. XXXII, serie 5a, 2o sem, fasc. 11o. Rome, 1923. FIRST EDITION, offprint issue. Fermi's first paper on the entropy constant of the perfect monatomic gas. Fermi, Collected Papers, no. 16.
Effetto di un campo magnetico alternato sopra la polarizzazione della luce di risonanza. Offprint from: Rendiconti Reale Accademia Nazionale de Lincei, Vol. I, serie 6a, 1o sem, fasc. 12o. Rome, 1925. FIRST EDITION, offprint issue. Fermi's most important and successful undertaking in 1925 was the study of the depolarization of resonance radiation under the action of an alternating magnetic field undertaken by the two friends [i.e. Fermi and F. Rasetti] in collaboration. This is the first significant experimental work in which Fermi participated...This work atincipated by several years the extensive applications of radiofrequnecy to atomic spectroscopy, to which it is related." Segrè, Enrico Fermi, Physicist, 38-39.)
Sulla quantizzazione del gas perfetto monoatomico. Offprint from: Rendiconti Reale Accademia Nazionale de Lincei, Vol. III, serie 6a, 1o sem, fasc. 3o. Rome, 1926. FIRST EDITION, offprint issue.
Zur Quantelung des idealen einatomigen Gases. Offprint from: Zeitschrift für Physik, Band 36, Heft 11/12. Berlin, 1926. FIRST EDITION, offprint issue. This is "probably his [Fermi's] most famous theoretical contribution, where he formulated the theory of an ideal gas of particles obeying the Paul exclusion principle, now designated in his honor as 'fermions' (F. Rasetti in Fermi, Collected Papers no. 31)..This paper was preceded by a short note in Italian. "It is well-known that Dirac developed this type of statistics independently of Fermi. Dirac's paper (see lot 67) was presented at the Royal Society on August 256, 1926, whereas Fermi's short notewas presented on February 7 and his longer paper was received by the editor of the 'Zeitschrift" on March 26. Thus both of Fermi's publication antedate Dirac's by an appreciable time. "Fermi statistics, which are applicable to electrons, protons, neutrons, and all particles of half integer spin, have a pervading importance in atomic and nuclear physics and in solid-state theory" (DSB).
Zur Wellenmechanik des Strossvorganges. Offprint from: Zeitschrift für Physik, Band 40, Heft 5. Berlin, 1926. FIRST EDITION, offprint issue. "This paper is a very simple and perspicuous application of Born's wave theory of collisions, which had been published a few months before." (Fermi, Collected Papers, no. 36, p. 218.
Quantum Mechanics and the Magnetic Moment of Atoms. Offprint from: Nature, no. 2981, vol. 118. 1926. FIRST EDITION, offprint issue. "One of Fermi's early applications of wave mechanics. He shows that Schroedinger's expression for the average current density leads to the correct value for the orbital magnetic moment of an electron in a central potential field." (Fermi, Collected Papers, no. 39, p. 244).
FERMI and F. RASETTI. Una misura del rapporto h/k per mezzo della dispersione anomala del tallio. Offprint from: Rendiconti Reale Accademia Nazionale de Lincei, Vol. V, serie 6a, 1o sem, fasc. 8o. Rome, 1927. FIRST EDITION, offprint issue. "This paper describes a verification of the Boltzmann distribution of thallium atoms between the ground state and the first excited state... Although the results did not attain great accuracy (the Boltzmann exponent agreeing with the theoretical value only to within 20 percent), the experiment can be regarded as the first quantitative verification of the Boltzmann formula for the thermal equilibrium of atoms among different energy levels." (Fermi, Collected Papers, no. 40b, p. 246)
Un metodo statistico per la determinazione di alcune proprieta dell'atomo. Offprint from: Rendiconti Reale Accademia Nazionale de Lincei, Vol. VI, serie 6a, 2o sem, fasc. 12o. Rome, 1927. FIRST EDITION, offprint issue. "After Fermi had developed the statistics of a gas of particles obeying the Pauli exclusion principle, he though of applying this method to the completely degenerate state of the electrons in an atom, point out that the number of electrons being but moderately large, the results cannot be expected to attain high accuracy...This statistical model, now generally designated as the Thomas-Fermi model, proved of great usefulness in evaluating various properties of atoms, in paricular calculating approimate one-electron eigenfuctions, wenever great accuracy can be sacrified in favor of simplicity and ease of calculation. Among other important applications, one may mention its use in the theory of the stopping power of matter for fast charged particles as developed by Bloch, Bethe and others."(Fermi, Collected Papers, no. 43, p. 277)
Sopra l'elettrodinamica quantistica. Offprint from: Rendiconti Reale Accademia Nazionale de Lincei, Vol. IX, serie 6a, 1o sem, fasc. 10. Rome, 1929. FIRST EDITION, offprint issue. "During the winter of 1928-29 Fermi started studying the quantum theory of radiation. His first step was to look at the papers by Dirac on this subject and to understand the results obtained by him. The method used by Dirac did not appeal to Fermi, who preferred, as he did very often, to recast the theory in a form mathematically more familiar to him." (Fermi, Collected Papers no. 50, p. 305)
Tentativo di una teoria dell'emissione dei raggi "beta." Offprint from: La Ricerca Scientifica, anno IV, vol. II, no. 12. Rome, 1933. FIRST EDITION, offprint issue. Fermi's first paper on his theory of beta-decay, his first great contribution to nuclear physics. Fermi accounted for the beta-decay type of radioactivity in which a neutron changes into a proton with the creation of an electron and a neutral particle called a neutrino. "To understand the fundamental contribution brought by Fermi with his beat-decay theory, it must be emphasized that the idea of the neutrino had remained up that time a rather vague hypothesis, while the construction of a formal theory had never been attempted. When Pauli first made his suggestion in 1930, electrons were believed to exist in the nucleus, and the hypothetical neutral particle was by analogy considered as another nuclear constitutent. . . .Only vague hints at the possible creation of the electron (and the neutrino) in the beta-decay process are found in the proceedings of the 1933 Solvay Conference." (Fermi, Collected Papers, no. 76 p. 539)
Sul moto dei neutroni nelle sostanze idrogenate. Offprint from: La Ricerca Scientifica, serie II, anno VII, vol. II, no. 1-2. Rome, 1936. FIRST EDITION, offprint issue.
FERMI and E. AMALDI. Sopra l'assorbimento e la diffusione dei neutroni lenti. Offprint from: La Ricerca Scientifica, serie II, anno VII, vol. II, no. 11-12. Rome, 1936. FIRST EDITION, offprint issue. Following the discovery in 1934 by the Joliot-Curies of artificial radioactivity induced by alpha particles, Fermi concluded that transmutations could be produced more effectiviely by bombarding nuclei with neutrons since they would not be repulsed by the electric field of the atom. In this way in a few months he discovered more than 40 new radioactive isotopes. Fermi and his co-workers discovered the enhancement of activity induced by neutrons which had been slowed down in passing through water or paraffin. Slow neutrons enter a nucleus in the same way a slow golf ball will fall into the cup while a fast one rolls by. Fermi became the world authority on neutron physics. This is a summary paper of continuing research that lead to his Nobel Prize in 1938.
Artificial Radioactivity Produced by Neutron Bombardment. Nobel Lecture, delivered at Stockholm December 12, 1938. Stockholm, 1939. FIRST EDITION. After receiving the Nobel Prize in Stockholm, Fermi emigrated to the United States. (44)