ELEMENTAL ABUNDANCES OF THE FIELD HORIZONTAL-BRANCH STARS .3.

Studies of 55-angstrom wide regions recently obtained with a CCD at th e coude feed telescope of the Kitt Peak National Observatory (KPNO) ar e used to extend the fine analyses of the field horizontal-branch (FHB ) A stars HD 7472 1, HD 86986 and HD 130095, and to begin those of HD 93329, HD 128801 and HD 167105. ATLAS9 model atmospheres were used. Sp ectra of other stars, obtained at both KPNO and the Dominion Astrophys ical Observatory (DAO), confirm previously found wavelength-dependent equivalent width systematics. The FHB A-type stars have somewhat diffe rent chemical compositions than other Population II stars. Most import antly, the [Ca/Fe] values for about one-half of our sample are smaller than the trend of values for the metal-deficient field red giants fou nd by Luck & Bond. HD 128801 has a somewhat different pattern of abund ance anomalies than the other FHB A stars studied. Some of the abundan ces of the FHB A stars are found to be correlated: Al with Fe, Ca with Ti, Ti with Cr, and Ti with Fe.