\begin{table}%t4 
\caption{\label{errors}Dependence of the derived abundances on the atmospheric parameters.}\vspace*{-2mm}
\small%\centerline
{
\begin{tabular}{c cc c c cc cc}
\hline\hline  \noalign{\smallskip}
 Species &$T\rm{_{eff}}^{~a}$&$ \log g$&$\rm [M/H]$&$\rm \xi$&$\rm macro.$
& $\rm C/O$ & $\rm ^{12}C/^{13}C$&Total\\
X&$\pm$150/250~K&$\pm$0.5&$\pm$0.2&$\pm$0.5 km s$^{-1}$&$\pm$1.5 km s$^{-1}$
&$\pm$0.1 & $\pm$10\\
\hline
\multicolumn{9}{c}{Late-R~stars}\\
\hline
$\rm Li$ &	$\pm$0.40	&	$\pm$0.05	&	$\pm$0.20	&	$\mp$0.00	&	$\pm$0.00	&	$\mp$0.20	&	$\pm$0.00&$\pm$0.50			\\
$\rm Fe $ &	$\pm$0.30	&	$\pm$0.00	&	--	&	$\mp$0.05	&	$\pm$0.10	       &	$\mp$0.10	&	$\pm$0.00&$\pm$0.35			\\
$\rm Rb $ &	$\pm$0.20	&	$\pm$0.10	&	$\pm$0.20	&	$\mp$0.00	&	$\pm$0.00	&	$\mp$0.15	&	$\mp$0.10&$\pm$0.35			\\
$\rm Sr $ &	$\pm$0.15	&	$\pm$0.00	&	$\pm$0.10	&	$\mp$0.05	&	$\pm$0.20	&	$\mp$0.10	&	$\mp$0.05&$\pm$0.30		\\
$\rm Y $ &	$\pm$0.15	&	$\pm$0.00	&	$\pm$0.10	&	$\mp$0.20	&	$\pm$0.25	&	$\mp$0.05	&	$\pm$0.00&$\pm$0.35			\\
$\rm Zr $ &	$\pm$0.05	&	$\pm$0.00	&	$\pm$0.05	&	$\mp$0.20	&	$\pm$0.25	&	$\mp$0.00	&	$\pm$0.00&$\pm$0.35			\\
$\rm Ba $ &	$\pm$0.15	&	$\pm$0.10	&	$\pm$0.10	&	$\mp$0.05	&	$\pm$0.00	&	$\pm$0.00	&	$\pm$0.00&$\pm$0.25			\\
$\rm La $ &	$\pm$0.05	&	$\pm$0.20	&	$\pm$0.10	&	$\mp$0.10	&	$\pm$0.20	&	$\mp$0.05	&	$\pm$0.00&$\pm$0.35			\\
$\rm Nd $ &	$\pm$0.05	&	$\pm$0.20	&	$\pm$0.05	&	$\mp$0.20	&	$\pm$0.20	&	$\mp$0.05	&	$\pm$0.00&$\pm$0.35			\\
$\rm Sm $&	$\pm$0.05	&	$\pm$0.10	&	$\pm$0.10	&	$\mp$0.25	&	$\pm$0.20	&	$\mp$0.00	&	$\pm$0.00&$\pm$0.35			\\
\hline
\multicolumn{9}{c}{Early-R~stars}\\
\hline
$\rm Li~$     &	$\pm$0.10	&	$\pm$0.00	&	$\pm$0.10	&	$\mp$0.00	&	$\pm$0.00	&	$\mp$0.10       &	$\pm$0.05&$\pm$0.30	\\
$\rm Fe $     &	$\pm$0.05	&	$\pm$0.00	&	--	&	$\mp$0.05	&	$\pm$0.15	&	$\mp$0.10	&	$\pm$0.00&$\pm$0.20			\\
$\rm Rb $	&	$\pm$0.05	&	$\pm$0.00	&	$\pm$0.00	&	$\mp$0.00	&	$\pm$0.05	&	$\mp$0.05	&	$\pm$0.00&$\pm$0.20	\\
$\rm Sr $	&	$\pm$0.10	&	$\pm$0.00	&	$\mp$0.05	&	$\mp$0.10	&	$\pm$0.15	&	$\mp$0.05	&	$\mp$0.00&$\pm$0.20		\\
$\rm Y $	&	$\pm$0.10	&	$\pm$0.00	&	$\pm$0.25	&	$\mp$0.00	&	$\pm$0.10      &	$\mp$0.15	&	$\pm$0.00&$\pm$0.40	\\
$\rm Zr$	&	$\pm$0.10	&	$\pm$0.00	&	$\pm$0.00	&	$\mp$0.00	&	$\pm$0.10	&	$\mp$0.05	&	$\pm$0.00&$\pm$0.30		\\
$\rm Ba$	&	$\pm$0.10	&	$\pm$0.10	&	$\pm$0.20	&	$\mp$0.00	&	$\pm$0.10	&	$\mp$0.05	&	$\pm$0.00&$\pm$0.30		\\
$\rm La $	&	$\pm$0.05	&	$\pm$0.20	&	$\pm$0.10	&	$\mp$0.00	&	$\pm$0.15	&	$\mp$0.05	&	$\mp$0.00&$\pm$0.30	\\
$\rm Nd $	&	$\pm$0.15	&	$\pm$0.20	&	$\pm$0.05	&	$\mp$0.05	&	$\pm$0.20	&	$\mp$0.00	&	$\mp$0.00&$\pm$0.40	\\
$\rm Sm $     &	$\pm$0.15	&	$\pm$0.20	&	$\mp$0.10	&	$\mp$0.00	&	$\pm$0.15	&	$\mp$0.00	&	$\mp$0.00&$\pm$0.35	\\
 \hline
\end{tabular}
}
\smallskip
 $^a$ See text for details. 
 \vspace*{-3mm}
\end{table}