\begin{table}%t5
 \caption{Comparison of abundance ratios (in log scale) in \mbox{Th-rich} stars. The second column gives the metallicity in terms of~[Fe/H].}\label{tab5}
%\centerline
{
\begin{tabular}{ l c c r l }
 \hline \hline
   Star            & [Fe/H] & Th/Eu &  Th/Pb       &  Th/U          \\
 \hline
 HD~221170          & --2.1   & --0.15 &    --1.28     & $>$0.84        \\
 CS31082-001$^a$   & --2.9   & --0.22 & $>$--0.78     & ~~0.94         \\  
 CS22892-052$^b$   & --3.1   & --0.62 &    --1.62     & $>$0.73        \\
 HD~115444$^c$      & --3.0   & --0.60 &    --1.8$^d$  & $>$0.40        \\
 BD+17$^o$3248$^e$ & --2.1   & --0.51 & $>$--1.48     & $>$0.82        \\
 \hline
 \end{tabular}}
\medskip
$^a$ Hill   et~al. (\cite{Hil02}). \\
$^b$ Sneden et~al. (\cite{Sne03}). \\
$^c$ Westin et~al. (\cite{Wes00}) for all ratios except Th/Pb. \\
$^d$ Th: Westin et~al. (\cite{Wes00}), Pb: Sneden et~al. (\cite{Sne98}). \\
$^e$ Cowan et~al.  (\cite{Cow02}). \\
\end{table}