  We present a new analysis of existing optical and ultraviolet spectra of the
ONeMg nova V1974 Cygni 1992. Using these data and the photoionization code
Cloudy, we have determined the physical parameters and elemental abundances for
this nova. Many of the previous studies of this nova have made use of incorrect
analyses and hence a new study was required. Our results show that the ejecta
are enhanced, relative to solar, in helium, nitrogen, oxygen, neon, magnesium
and iron. Carbon was found to be subsolar. We find an ejected mass of ~2x10e-4
solar masses. Our model results fit well with observations taken at IR, radio,
sub-millimeter and X-ray wavelengths.
