Abstract
I have analyzed spectral data of the symbiotic nova PU Vul observed with the International Ultraviolet Explorer (IUE) during the period 1993–1996. The study concentrated on the two sources of nebular emitting regions, the first is a nebula around the white dwarf partially eclipsed by a cool giant star and the second is a very extended nebular region not affected by the eclipse of the giant star. I concentrated on the N IV] 1486 A and C IV 1550 A emission lines produced in the first region and N III] 1750 A and C III] 1909 A emission lines produced in the second region very far from the giant star.
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