ROSAT PSPC OBSERVATIONS OF NGC-7469 AND ARK-120

We present spatial, temporal and spectral analyses of. ROSAT Position Sensitive Proportional Counter (PSPC) observations of the Seyfert 1 ga laxies NGC 7469 and Ark 120. Both of these sources show evidence for e xcess emission and more complex 0.1-2.5 keV spectra than are predicted by simple extrapolations of higher energy power laws. We find that th e spectrum of NGC 7469 can be explained by models that have secondary power-law, secondary bremsstrahlung, secondary blackbody or emission-l ine components. We find evidence for 0.1-2.5 keV intensity variability of NGC 7469. The spectrum of Ark 120 is better described by models wi th secondary continuum components than by models with sharper spectral features. We discuss the agreement between X-ray and ultraviolet obse rvations of these sources and examine the observations in the context of accretion disc reflection models. The inner parts of discs are like ly to be reflective below approximate to 0.24 keV, and this reflectivi ty complicates simple models of the soft excess.