\begin{table}%T1
\caption{ISO spectrum of \object{NGC~6886}.} \label{tab-1}
%\centerline
{
\begin{tabular}{lrcc}
\hline
\hline
Ident. &  $\lambda$($\mu$m) & Intensity & Comparison  \\
\hline
\ion{H}{i} 5-4 & 4.052 & 0.173 & \\
\ion{[Mg}{iv]}  & 4.486 & 2.80 & \\
\ion{[Ar}{vi]}  & 4.529 & 1.87 & \\
\ion{[Mg}{v]}  & 5.609 & 4.50 & \\
\ion{[Ne}{vi]} & 7.652 & 0.96 & \\
\ion{[Ar}{iii]} & 8.992 & 1.40 & \\
\ion{[S}{iv]} & 10.510 & 23.4 & 25.\\
\ion{[Ne}{ii]} & 12.812 & 1.89   &  \\
\ion{[Ne}{v]} & 14.320 & 24.3 & \\
\ion{[Ne}{iii]} & 15.554 & 38.8 & 50.\\
\ion{[S}{iii]} & 18.714 & 39.3 & 40.\\
\ion{[Ne}{v]} & 24.315 & 21.2 & \\
\ion{[O}{iv]} & 25.888 & 62.3 & \\
\ion{[Ne}{iii]} & 36.010 & 3.37 & \\
\ion{[O}{iii]} & 51.817 & 17.5 & 14.6 \\
\ion{[N}{iii]} & 57.328 & 6.4: & 2.7: \\
\ion{[O}{iii]} & 88.401 & 3.30 & 2.97 \\ 
\hline
\end{tabular}} 
\par
\medskip
 Column 3 gives our
  measured values. The last column gives the IRAS measurements
  (Pottasch et~al. \cite{pott3}) below 20~$\mu$m, the \ion{[S}{iv]}
    measurement of Roche \& Aitken (\cite{roche}) and the values of Liu
  et~al. (\cite{liu}) above 50~$\mu$m. All intensities are in units 
of 10$^{-12}$ erg~cm$^{-2}$~s$^{-1}$. The ":'' on the \ion{[N}{iii]} line
intensity indicates that the line is weak and difficult to measure.
\end{table}