THEprincipal advances in fundamental research and applications of atomic emission spectroscopy during six postwar years, 1946-51, were reviewed in three previous reports (87-89). The interest in those review's encouraged the preparation of this one covering the years 1952-53. As before, new' information is listed under standard wave lengths, spectral line intensities, Zeeman effect, term analysis, hyperfine structure, isotope shifts, spectrochemical analysis, and related topics.