\begin{table}%t5
\caption{Abundances of O and Na in NGC 6752. [Na/Fe]~values are corrected for
departures from LTE. HR is a~flag for the grating used 
(1~= HR13 only, 2~= HR11 and HR13, 3~= HR11 only) and lim is a~flag discriminating
between real detections and
upper limits in the O~measurements (0~= upper limit, 1~= detection). The complete
table is available only in electronic form at the CDS.}\label{t:abunao}
%\centering
\small
\begin{tabular}{rrccrcccc}
\hline \hline
Star     &   Nr &  [O/Fe] & rms   &   Nr &   [Na/Fe]&  rms   & HR & lim \\
\hline
   1217   & 1&   +0.01&     &  4 &  +0.72& 0.07 & 2 & 0 \\  
   1493   & 1&   +0.02&     &  2 &  +0.36& 0.09 & 1 & 0 \\  
   1584   & 1&   +0.29&     &  2 &  +0.14& 0.08 & 2 & 0 \\  
   1797   & 1&   +0.01&     &  2 &  +0.42& 0.09 & 1 & 0 \\  
   2097   & 2& $-$0.01& 0.03&  3 &  +0.84& 0.05 & 2 & 1 \\  
   2162   & 1&   +0.10&     &  4 &  +0.57& 0.06 & 2 & 0 \\  
   2704   & 1&   +0.58&     &  3 &  +0.26& 0.05 & 2 & 1 \\  
   2817   & 1&   +0.62&     &  3 &  +0.37& 0.14 & 2 & 1 \\  
   4602   & 1& $-$0.01&     &  3 &  +0.51& 0.11 & 2 & 0 \\  
   4625   & 1&   +0.47&     &  2 &$-$0.05& 0.10 & 2 & 1 \\  
   4787   & 1&   +0.11&     &  3 &  +0.65& 0.05 & 2 & 0 \\  
\hline
\end{tabular}
\end{table}