Full text 

Full text 

Table of Contents: “... Leprince-Ringuet et de son Groupe de Travail sur les Rayons Cosmiques de 1933 á 1953 -- Cosmic Ray Neutrons, 1934–1959 -- Reminiscences on Cosmic Ray Research at the University of Minnesota -- Reminiscences of Some Early Cosmic Ray Work in India -- 7 Further...”

Full text 

Table of Contents: “... of Accelerator Beam Energies -- Absolute Measurement of the Energy of Alpha Particles Emitted by 239Pu -- Atomic Mass Determinations at the University of Manitoba -- Recent Mass Doublet Results from the University of Minnesota -- Considering L.G. Smith’s RF Mass...”

Full text 

Full text 

Full text