\begin{table}%t1
\caption{\label{tbl_VLSamplesProperties1}Properties of the SDSS-DR7 VL samples.}
%\centerline
 {
\begin{tabular}{cccccc}
  \hline\hline
  VL sample & $R_{\min}$ & $R_{\max}$ & $M_{\min}$ 
& $M_{\max}$ & $N$ \\
  \hline 
  VL1    & 50  & 200 & --18.9 & --21.1  & 72~037 \\
  VL2    & 150 & 500 & --21.1 & --22.4  & 69~999 \\
  VL3    & 200 & 600 & --21.5 & --22.7  & 42~357\\
  VL4    & 70  & 450 & --20.8 & --21.8  & 93~821\\  
  LRG   &  570 & 1035 & --20.5 & --22.5 & 53~066\\
\hline
\end{tabular}}
\medskip
\par
$R_{\min}$,
  $R_{\max}$ (in~Mpc/h) are the metric distance limits;
  ${M_{\min}, ~M_{\max}}$  the absolute
  magnitude limits in the $r$~filter; $N$ is the number of
  galaxies.
\end{table}