  We have analyzed FUSE observations of six hot white dwarf stars: four DA
white dwarfs with T_eff >= 45000K, the DAO Feige55 (T_eff = 55000K), and the DA
CD -38 10980 (T_eff = 24000K). Photospheric lines from SiIV, PV, and SVI can be
observed in the majority of the five hotter objects. Feige55 shows also several
other heavier elements. The measured abundances agree only partly with the
predictions of the radiative levitation theory. We attribute this to current
limitations of the models and the probable presence of mass loss. In the
spectrum of CD -38 10980, we have observed the quasi-molecular satellites of
Lbeta. This confirms theoretical predictions about the visibility range for
these features.
