\begin{table}%t5
%\centering
\par
\caption{\label{tab_lick}Linear transformation between indices measured by us and  in LICK systems.  }
  \begin{tabular}{lccl}
  \hline\hline \noalign{\smallskip}
  Index   & Linear relation & rms & Lick/HET \\
            &(Lick=$a\times~$HET+$b$) & &\\
\hline
$H\beta$  &1.091($\pm$ 0.096)--0.327($\pm$ 0.134) &0.085  &0.780 $\pm$ 0.117\\
Mg$_b$    &1.137($\pm$ 0.025)--0.549($\pm$ 0.129) &0.073  &0.967 $\pm$ 0.0245\\
Fe5015  &0.892($\pm$ 0.105)+0.980($\pm$ 0.663) &0.147  &1.052 $\pm$ 0.0276\\
Fe5270  &0.879($\pm$ 0.135)+0.499($\pm$ 0.471) &0.143  &1.037 $\pm$ 0.0291\\
Fe5335  &0.903($\pm$ 0.085)+0.255($\pm$ 0.321) &0.117  &0.990 $\pm$ 0.0249\\
Fe5406  &0.974($\pm$ 0.127)+0.171($\pm$ 0.265) &0.142  &1.066 $\pm$ 0.0373\\
\hline
\end{tabular}
\tablefoot{The second column displays the best linear relations, 
and the last column show the ratio of LICK systems to our measurements.}
\end{table}