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The random selected sample

From the random selected subsample of second priority candidates we observed twenty six objects during the 6-m telescope runs (mainly those with R.A.< 11^h) along with the observations of first priority targets. Altogether we found 12 emission-line objects: one appeared to be a QSO with z =3.15, and the rest are various types of ELGs. They are shown in Table 3 and  4, respectively, and are marked by $\dagger$. Nine objects are stars of spectral classes from A to G, with one M-star. One object is an absorption-line galaxy. The remaining four second priority candidates have no (trustworthy) emission lines, and are probably either absorption line galaxies, or various types of stars. They are considered as ``not classified'' in Table 1. Among the 11 ELGs only one has a spectrum and an absolute magnitude indicative of a BCG/H II-galaxy. The others are either low excitation ELGs like SBN and DANS, or AGN like LINERs or Sy galaxies.

The remaining 17 candidates were observed with the 2.2m telescope and three probable BCGs were found among them. Preliminary spectral classification type for these objects are shown in the last column of Table 8. Classification of ELGs follows that described for Table 3. ``Star'' is star-like object with absorptions at zero redshift. ``ABS'' is a galaxy with detected and identified absorption lines. ``NOEM'' is an object with no (trustworthy) emission lines detected.

In total, we found 4 (probable) BCG/H II-galaxies in the random selected sample making up a fraction of $\approx$10%.