\begin{table}%t3
\caption{\label{t3}Abundances obtained for the target stars.}
 %\centerline
 {
\par
\begin{tabular}{lccccccccc}        
\hline\hline 
El.              & 11583        & 12404         & 13415         & 16149        & 18646         &  8745         & 24938         &  ${\rm \langle \log\epsilon (El)\rangle}$ & [El/H]\\
\hline
HeI              & $<$11.1   & 10.89 $\pm$ 0.07 &   --       &  --           & 10.90 $\pm$ 0.07 & 10.84 $\pm$ 0.07 & 10.99 $\pm$ 0.07 & 10.91 $\pm$ 0.03 & -- \\
OI               & 7.56 $\pm$ 0.13&  7.84 $\pm$ 0.10&  7.82 $\pm$ 0.08& 7.73 $\pm$ 0.07&  7.86 $\pm$ 0.11&  7.83 $\pm$ 0.10&  7.87 $\pm$ 0.06&  --             &        --      \\  
OI$_{\rm NLTE}$  & 7.41 $\pm$ 0.13&  7.70 $\pm$ 0.10&  7.68 $\pm$ 0.08& 7.56 $\pm$ 0.07&  7.72 $\pm$ 0.11&  7.68 $\pm$ 0.10&  7.70 $\pm$ 0.06&  7.67 $\pm$ 0.02 & --1.16 $\pm$ 0.03\\
NaI              & 5.35 $\pm$ 0.10&  4.72 $\pm$ 0.04&  4.78 $\pm$ 0.05& 4.65 $\pm$ 0.03&  4.85 $\pm$ 0.03&  4.60 $\pm$ 0.04&  4.71 $\pm$ 0.02&  --             &        --      \\
NaI$_{\rm NLTE}$ & 5.15 $\pm$ 0.10&  4.52 $\pm$ 0.04&  4.58 $\pm$ 0.05& 4.45 $\pm$ 0.03&  4.65 $\pm$ 0.03&  4.40 $\pm$ 0.04&  4.51 $\pm$ 0.02&  4.52 $\pm$ 0.04 & --1.81 $\pm$ 0.04\\
SiII             & 6.17 $\pm$ 0.13&  6.31 $\pm$ 0.10&  6.24 $\pm$ 0.10& 6.20         &  6.28 $\pm$ 0.12&  6.25 $\pm$ 0.09&  6.18         &  6.23 $\pm$ 0.02 & --1.32 $\pm$ 0.02\\
TiII             & 3.61 $\pm$ 0.05&  3.74 $\pm$ 0.04&  3.64 $\pm$ 0.03& 3.58 $\pm$ 0.03&  3.71 $\pm$ 0.03&  3.60 $\pm$ 0.04&  3.60         &  3.64 $\pm$ 0.02 & --1.38 $\pm$ 0.02\\
CrII             & 3.92 $\pm$ 0.05&  4.17 $\pm$ 0.06&  4.06 $\pm$ 0.02& 3.96 $\pm$ 0.04&  4.00 $\pm$ 0.02&  3.98 $\pm$ 0.04&  4.12         &  4.03 $\pm$ 0.03 & --1.64 $\pm$ 0.03\\
FeI              & 5.83 $\pm$ 0.02&  6.14 $\pm$ 0.02&  5.97 $\pm$ 0.02& 5.82 $\pm$ 0.03&  6.08 $\pm$ 0.02&  5.91 $\pm$ 0.02&   --           &  5.96 $\pm$ 0.05 & --1.54 $\pm$ 0.05\\
FeII             & 5.81 $\pm$ 0.04&  6.01 $\pm$ 0.05&  5.95 $\pm$ 0.07& 5.92 $\pm$ 0.06&  5.95 $\pm$ 0.05&  5.89 $\pm$ 0.05&  5.94 $\pm$ 0.04&  5.92 $\pm$ 0.02 & --1.58 $\pm$ 0.02\\
BaII             & 0.25         &   --           &  0.45         & 0.55         &   --           &   --           &   --           &  0.42 $\pm$ 0.09 & --1.71 $\pm$ 0.09\\
\hline                                   
\end{tabular}}
\medskip
\par
In the two last columns we give
         the average abundances and the average abundances relative to the Sun. In the
         calculation of the average abundances of O and Na we rejected the star \#11583 
         because its O and Na contents deviate from the general trend (see
         text). For \#11583 we give an upper limit for the He
         abundance, which is useful for the discussion, see Sect.~6. Errors for
         He abundance were obtained as described in Sect.~6.
\end{table}