\begin{table}%t4
\caption{Equivalent widths of the H$\gamma$ and 
H$\delta$ absorption lines in the LSB regions. 
}
\label{t:abshdhg}
%\begin{center}
{
\begin{tabular}{lcclrrc} 
\hline \hline
Telescope &Region&Distance$^{a}$&Aperture$^{b}$&& 
$EW$(H$\delta$)$^{c}$  &$EW$(H$\gamma$)$^{c}$  \\ \hline
%&$EW$(H$\delta$)$_{\rm mod}^{\rm c}$  &$EW$(H$\gamma$)$_{\rm mod}^{\rm c}$   \\ \hline
MMT$^{d}$ &{\it a}1& 10.7~~~~~~&$1.5\times3.4$ && $-5.53 \pm0.22$  &  $-4.92\pm0.23$ \\ %& 6.05  & 4.93 \\
     &{\it a}2& 29.5~~~~~~&$1.5\times13.2$  && $-8.89 \pm0.53$ & $-6.07 \pm0.41$ \\ %& 8.89 & 7.93 \\
  \hline
4~m$^{e}$ &{\it a}3& 12.6~~~~~~&$2.0\times7.6$ && $-8.28 \pm0.50$ & $-5.71 \pm0.60$ \\ %& 9.56 & 7.84 \\
        &{\it a}4& 22.6~~~~~~&$2.0\times2.8$ &&  $-9.06 \pm0.63$ &     ...       \\ 
  \hline
\end{tabular}}  
{
$^{a}$  Distance in arcsec from the brightest H {\sc ii} region {e}1.\\
$^{b}$ Aperture size $x \times y$, where $x$ is the slit width and $y$ the size 
along the slit in arcsec. \\
$^{c}$ In \AA. \\
$^{d}$ Slit orientation with position angle ${\rm PA} = 22^{\circ}$. \\
$^{e}$ Slit orientation with position angle ${\rm PA} = 48^{\circ}$.}
%\end{center}
\par
\end{table}