\begin{table}%T7
%\centering
\par
\caption{C, N, O and heavy elements.
Carbon abundances are derived from C$_2$ lines and
nitrogen abundances from CN lines (Sect. 6).
Abundances of the heavy elements Ba, La and Eu are derived
using hyperfine structure (Sect. 4). }
\label{tabCNO}
\begin{tabular}{lcccrrr}
\hline
\hline
Species & $\lambda ({\rm \AA})$ & $\chi_{\rm ex}$(eV) & log~$gf$ &   I-18 &  I-36 & I-42  \\
\hline
[OI]     & 6300.311 & 0.00 & --9.716 & +0.10 & +0.15 & +0.20  \\
ScII     & 6300.67 & 1.50 & hfs & --0.25 & --0.20 & +0.00  \\
C(C$_2$) & 5634.2, 35.5 & (0, 1) & --     &  0.00 &  0.00 &  0.00  \\
N(CN)    & 6332.2 & (5, 1) & --     & +0.60 & +0.60 & +0.60  \\
BaII     & 6141.727 & 0.70 &    --0.08 & --0.05 & +0.20 & --0.05 \\
BaII     & 6496.908 & 0.60 &    --0.38 & 0.00 & +0.10 & 0.00 \\
LaII     & 6390.480 & 0.32 &    --1.45 &  --0.30 & --0.15 & +0.00 \\
EuII     & 6645.127 & 1.38 &    +0.12 &  +0.15 & +0.15 & +0.15\\
 \hline 
\end{tabular}
\end{table}