\begin{table}%T2
\caption{QSO samples for RLF and redshift-cutoff analyses.}
\label{samtab}%\centerline
{
\begin{tabular}{lrrrr}
\hline\hline
Sub-sample & \multicolumn{2}{c}{Sample 2$^\dag$} & \multicolumn{2}{c}{Sample 3$^\ddag$}\\
\hline
%&&&&\\
\ \ with measured $z$ UKST ID & 342 &      &\ \  242 &     \\
\ \ with measured $z$ CCD ID  &  13 &      &\ \   10 &     \\
total QSOs with measured $z$       &     &\ \  355  &     & 252 \\
&&&&\\
\ \ no measured $z$ UKST ID   &  17 &      &\ \   11 &     \\
\ \ no measured $z$ CCD ID    &   6 &      &\ \    4 &     \\
total QSOs with no measured $z$    &     &\ \   23  &     &  15 \\
&&&&\\
no ID (no measured $z$)       &   1 &   1  & \ \   1 &   1 \\
&&&&\\
Totals QSOs + non-ID         & 379 & 379  &\ \  268 & 268 \\
\hline
\end{tabular}}
\medskip
$^\dag~ S_{\rm 2.7~GHz} \ge S_{\rm lim}$, $+2.5\d > \delta
> -40\d$, area 3.569 sr.\\
$^\ddag~ S_{\rm lim} =0.25$~Jy, $S_{\rm 2.7~GHz} \ge S_{\rm lim}$, area 2.278 sr.
\end{table}