ELEMENTAL ABUNDANCE ANALYSES WITH COMPLEJO-ASTRONOMICO-EL-LEONCITO REOSC ECHELLE SPECTROGRAMS .2. MU-LEPORIS, 7-SEXTANTIS, HR-4817, AND 28-HERCULIS

Elemental abundances are derived for four sharp-lined stars, the Mercu ry-Manganese stars mu Lep, HR 4817, and 28 Her, and 7 Sex, a Populatio n I star with Population II space motions, using REOSC echelle spectro grams obtained at CASLEO to extend previous studies. Comparisons with published equivalent widths indicate that the CASLEO scale is marginal ly larger than those of DAO Reticon and KPNO CCD spectra. The CASLEO s pectrograms have improved the quality of the abundance determinations. New abundances are found for a few elements.