The selection of objects to be included in this catalog is based primarily on the object classification included in the FITS header of the object spectrum in INES and partly on object selection from the INES archive. The IUE observing class is a two-digit code describing the observed target. In selecting the objects included here, we chose codes 80 (spiral galaxy), 81 (elliptical galaxy), 82 (irregular galaxy), and 88 (emission-line galaxy, non-Seyfert). Searches of the INES archive returned 370 objects corresponding to these definitions. Further consideration of additional data about these 370 objects, mainly collected from the NED3 data base, indicated that some of them harbor active galactic nuclei (AGNs). These objects may not have been known as AGNs at the time of the IUE observations, or the Guest Observer (GO) did not identify the object as an AGN when the Resident Astronomer (RA) entered the necessary information in the exposure header. Such objects were deleted from the candidate list.
On the other hand, opposite cases of missed normal galaxies could exist. We did not search the more than 100,000 spectra on INES for objects classified by the GO, and entered by the RA in the image header, as anything but classes 80, 81, 82, or 88, which may be ``normal galaxies'' as defined here. These objects are, therefore, excluded from this guide.
Another reason for rejecting candidates selected as normal galaxies were a few cases where an object was identified as a normal galaxy, had a spectrum present in the archive, but the extracted spectrum contained essentially no flux. In other cases, the location of the IUE entrance aperture was patently off the object and sampled only clear sky, yielding a zero net-flux spectrum in INES. Such cases were not included in our compilation, but have a remark in the appropriate section of the comments.
The 274 galaxies included in the present guide are listed in Table 1. We present there the leading name of the galaxy as it appears in the homogeneous identification of IUE, its J2000 equatorial coordinates, its morphological type and its T-type, its total B magnitude, and (B-V) and (U-B) colors, as listed in the LEDA database.