\begin{table}%T3
%\centering
\par
\caption{\ion{Ne}{vii} lines identified in UV (vacuum wavelengths) and optical
  (air wavelength) spectra of PG~1159
  stars. The last column gives the excitation energy of the lower level of the
  line transition. Level energies for the 3853$-$3912~\AA\ multiplet are from
  Kelly (\cite{Kelly87}), but line positions determined from our observations. As a
  consequence, the uncertainty in Kelly's energy for the lower level 
  is $x\protect\la1600$~cm$^{-1}$.
\label{ne7_lines_tab}
}
\begin{tabular}{rllr}
      \hline
      \hline
      \noalign{\smallskip}
%$\lambda$/~\AA &  \multicolumn{2}{c}{Transition} & reference & E/cm$^{-1}$\\
$\lambda$/\AA &  Transition & Reference & $E$/cm$^{-1}$\\
      \noalign{\smallskip}
     \hline
      \noalign{\smallskip}
973.3  & 2p$^1$P$^{\rm o}$--2p$^2$~$^1$D     & Lindeberg (\cite{Lindeberg72}) & 214~952\\
      \noalign{\smallskip}
\hline
      \noalign{\smallskip}
1982.0  \\
1992.1 & 3s$^3$S--3p$^3$P$^{\rm o}$ & Wiese \etal (\cite{Wiese66})& 978~320\\
1997.3  \\
      \noalign{\smallskip}
\hline
      \noalign{\smallskip}
3643.6 & 3s$^1$S--3p$^1$P$^{\rm o}$ & {\small JK69} &998~250\\
           \noalign{\smallskip}
\hline
      \noalign{\smallskip}
3853.3&                              &            &1~028~386 + $x$\\
3866.8&                              &            &1~028~519 + $x$\\
3873.2&                              &            &1~028~519 + $x$\\
3894.0& 3p$^3$P$^{\rm o}$--3d$^3$D & This paper &1~028~775 + $x$\\
3905.1&                              &            &1~028~775 + $x$\\
3912.3&                              &            &1~028~775 + $x$\\
\hline
     \end{tabular}
\end{table}