  Two high galactic latitude B-type stars, PG1323-086 and PG1704+222, are
analysed from low and medium resolution optical spectra and Stroemgren
photometry. A differential abundance analysis for He, C, N, O, Mg, Al, and Si
reveals that the He abundance is close to solar while metal underabundances
relative to the solar value of typically 1.3 and 1.2 dex for PG1323-086 and
PG1704+222, respectively, are found. For both stars, carbon is even more
depleted. The atmospheric parameters are consistent with evolutionary tracks
for stars evolving from the asymptotic giant branch (AGB) with a stellar mass
of 0.55 solar masses. The anomalous compositions are compatible with those of
other high galactic latitude post-AGB stars. Hence, PG1323-086 and PG1704+222
are low mass post-AGB stars in an evolutionary stage between those of A- and
F-type supergiants of low mass and central stars of planetary nebulae. From
kinematic data and distances a population II membership is probable for both
stars.
