\begin{table}%t8
\caption{Abundances of the elements in the stars.  Here is a sample of the
table which is available in electronic form for all the 35 stars at the CDS.
% via anonymous ftp to {\tt cdsarc.u-strasbg.fr (130.79.128.5)} or via
%{\tt http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/}. 
Note that Na~Al and~K are NOT
corrected for non-LTE effects (see Sect.~4.4.1 for corrections) and that~O is
computed with~1D~models.}\label{tab-abund}
%\centering
\par
\begin{tabular}{lccccc}
\hline  \hline
\multicolumn {3}{c}{HD~2796}      [Fe/H] = --2.47\\
\hline
     & $\log~\varepsilon$& [M/H]&  [M/Fe] & $\sigma$ & N  \\
C    &     5.55  &  $-$2.97   &  $-$0.51  &      $-$   &     $-$ \\
N    &       $-$   &    $-$     &   $-$     &      $-$   &     $-$ \\
O    &     6.80  &  $-$1.97   &  0.50   &      $-$   &     $-$ \\
Na   &     4.20  &  $-$2.13   &  0.34   &      $-$   &     2 \\
Mg   &     5.36  &  $-$2.22   &  0.25   &    0.14  &     7 \\
Al   &     3.35  &  $-$3.12   & $-$0.66   &      $-$   &     2 \\
Si   &     5.48  &  $-$2.07   &  0.40   &      $-$   &     1 \\
K    &     3.25  &  $-$1.87   &  0.60   &      $-$   &     2 \\
Ca   &     4.22  &  $-$2.14   &  0.32   &    0.10  &    16 \\
Sc   &     0.79  &  $-$2.38   &  0.09   &    0.11  &     7 \\
Ti I &     2.75  &  $-$2.27   &  0.20   &    0.06  &    12 \\
Ti II&     2.79  &  $-$2.23   &  0.24   &    0.09  &    28 \\
Cr   &     2.95  &  $-$2.72   & $-$0.26   &    0.13  &     7 \\
Mn   &     2.54  &  $-$2.85   & $-$0.39   &    0.01  &     3 \\
Fe I &     5.05  &  $-$2.45   &  0.01   &    0.13  &   114 \\
Fe II&     5.02  &  $-$2.48   & $-$0.02   &    0.13  &    17 \\
Co   &     2.59  &  $-$2.33   &  0.14   &    0.08  &     2 \\
Ni   &     3.70  &  $-$2.55   & $-$0.09   &    0.14  &     3 \\
Zn   &     2.37  &  $-$2.23   &  0.24   &      $-$   &     1 \\
\hline
\end{tabular}
\end{table}