TY - BOOK AU - Millikan,Robert Andrews TI - Electrons (+ and -): protons, photons, neutrons, and cosmic rays T2 - The University of Chicago science series PY - 1947///] CY - Chicago PB - University of Chicago press KW - Electrons KW - Local KW - Cosmic rays KW - Neutrons KW - Protons KW - Atoms N1 - The author has here revised his former work entitled 'The electron' and added six new chapters. cf. Pref ER -