\begin{table}%t2
  \caption{\label{tab2}ISO~LWS spectrum of \object{M~1-42}. The measured lines are
    given in Col.~3. The last column gives the ratio of the line
    intensity to H$\beta$($=$100). The intensities are measured in units of 
    10$^{-14}$~erg~cm$^{-2}$~s$^{-1}$. No reddening correction has been made.}
\small%\centering
\par
\begin{tabular}{lrcc}
\hline
\hline
Ident. &  $\lambda$($\mu$m) & Intensity & I/H$\beta$ \\
\hline
{}[\ion{O}{iii}] & 51.83  & 3830  & 383  \\
{}[\ion{N}{iii}] & 57.32  & 2690  & 269  \\
{}[\ion{O}{i}]   & 63.19  & 318   & 31.8 \\
{}[\ion{O}{iii}] & 88.35  & 1800  & 180  \\
{}[\ion{N}{ii}]  & 121.9  & 59    & 5.9  \\
\hline
\end{tabular}
\end{table}