We present data from a moderately deep spectroscopic Schmidt survey
(Blim=17.5) of ``active galaxies'' selected by the presence of emission lines
in their spectra and/or their UV excess. The redshift, magnitudes, color and
diameter reduction methods have been discussed in a previous paper. Here we
explain the emission line equivalent width determination method. 92 emission
line objects have been found in two adjacent fields (approximately 50deg^2) in
the direction of the south extension of the Virgo cluster. We give a catalog
containing positions, photographic R and B magnitudes, U-R colors, effective
diameters, redshifts, equivalent widths and intensity ratios of the
[OIII]4959,5007, Hbeta and [OII] 3727 emission lines. On these fields, we
evaluate the completeness limit of the survey at a pseudo B magnitude value of
15.7.Comment: tar gzipped file 7 AA latex2e pages(including 7 figures) + 1 tex
table (2 pages) + 5 pages (color ps) charts will appear in A&A, available
also at http://hasso.mpia-hd.mpg.de/Surace/surace.html#article
