  We present a deuterium abundance analysis of the line of sight toward the
white dwarf WD2211-495 observed with the Far Ultraviolet Spectroscopic Explorer
(FUSE). Numerous interstellar lines are detected on the continuum of the
stellar spectrum. A thorough analysis was performed through the simultaneous
fit of interstellar absorption lines detected in the four FUSE channels of
multiple observations with different slits. We excluded all saturated lines in
order to reduce possible systematic errors on the column density measurements.
We report the determination of the average interstellar D/O and D/N ratios
along this line of sight at the 95% confidence level: D/O = 4.0 +/-1.2 *10^-2;
D/N = 4.4 +/-1.3 *10^-1. In conjunction with FUSE observations of other nearby
sight lines, the results of this study will allow a deeper understanding of the
present-day abundance of deuterium in the local interstellar medium and its
evolution with time.
