  We present detailed abundance results for 9 Galactic bulge stars in Baade's
Window, based on HIRES (R=45,000--60,000) spectra taken with the Keck I
telescope.
  The alpha elements show non-uniform enhancements relative to the Solar
neighborhood trends: Mg and Si are enhanced in all our bulge stars by
$\sim$0.5--0.3 dex, showing a slight decrease with increasing [Fe/H]. Oxygen is
enhanced in most bulge stars, similar to the Galactic halo, but the [O/Fe]
ratios suddenly decline beginning at [Fe/H]=$-$0.5 dex, with a slope consistent
with no oxygen production in the bulge for [Fe/H]$\geq$$-$0.5 dex. The observed
production of magnesium in the absence of oxygen synthesis appears to be
inconsistent with current predictions for supernova nucleosynthesis yields; we
suggest that this may be connected to the Wolf-Rayet phenomenon, which occurs
in the pertinent metallicity range. The trend of [Ti/Fe] shows an enhancement
relative to the solar neighborhood of $\sim$0.3 dex, but declines somewhat by
solar metallicity; thus, the Ti trend is less extreme than found by McWilliam &
Rich (1994, MR94). For metal-poor bulge stars calcium is enhanced by $\sim$0.3
dex, similar to the Galactic halo, but in our bulge stars with
[Fe/H]$\geq$$-$0.5, Ca show a slight deficiency relative to the solar
neighborhood value, consistent with the findings of MR94; this may indicate a
slightly top-heavy IMF as suggested by MR94 and McWilliam (1997). Aluminum is
enhanced in all our Galactic bulge giant stars by $\sim$0.25 dex; we argue that
this is consistent with nucleosynthesis dominated by type II supernova events
(SNII), implied by the Mg and Si enhancements. (Abridged)
