Less precise comparisons can be made between IUE SWP camera data and the panchromatic HST/STIS atlas of Arcturus (Ayres, priv. comm.) and the HST/GHRS atlas of Procyon (Wood et al. 1996). Wood et al. measured Procyon atlas lines by detailed centroid-fitting algorithms. The results were referred to an ``absolute" (ground-based) scale, with a minor barycentric correction being applied for the star's orbital motion around a companion. These authors also noticed a systematic trend of emission line velocities with excitation potential such that the velocity of the lower-excitation features agrees with the ground-based scale within 1 km s-1. The cross-correlation with the Arcturus atlas features was carried out for two available SWP echellograms and for eight echelle orders at the long-wavelength end of this camera's range. We measured a mean IUE - STIS velocity differences ± 5 km s-1), respectively, giving a mean of -0.7 ± 5 km s-1; see Table 3. The comparison with the Procyon atlas could be made with only six observations. Again, a flux deficit at short wavelengths and a general paucity of lines restricted our cross-correlations to echelle orders 72-76. The mean IUE - GHRS difference from this comparison was -4.9 ± 5 km s-1. When corrected by +1.0 km s-1 (Irwin et al. 1992), this result becomes -3.9 km s-1 (Table 3). Errors of ± 5 km s-1 (taken from the comparison of IUE/SWP data to the Procyon atlas) were applied to this comparison. In this case, the data quality were higher, but there were fewer spectra in the sample. The differences from comparisons with the two atlases, -3.9 ± 5 km s-1 and -0.7 ± 5 km s-1 are consistent with the value of -1 km s-1 determined from the 10 Lac study.