\begin{table}%T1
%\centering
\par
\caption{Details of emission lines used and the results of the analysis. 
Columns~2$-$4 give the emission line parameters. Columns 5 and~6 give 
the correlation coefficient $q$
and the probability $P$ that the correlation coefficient arises from a random 
distribution respectively. Column~7 gives the slope of the straight line fit
and its error.}\label{t1}
\begin{tabular}{lllllll}
\hline\hline
No.&Ion&$\lambda$&$T$&$q$&$P$&slope\\
&&[\AA]&[MK]\\
\hline
1&HeII(2)&607.56&0.083&0.56&0.01&0.60  $\pm$  0.02\\
2&OIII&599.59&0.11&0.86&0.00&0.59 $\pm$ 0.01\\
3&OIV&608.40&0.19&0.83&0.00&0.53 $\pm$ 0.01\\
4&OV&629.73&0.25&0.84&0.00&0.68 $\pm$ 0.01\\
5&NeVI&562.80&0.43&0.83&0.00&0.78 $\pm$ 0.01\\
6&NeVII&561.73&0.52&0.74&0.00&0.93 $\pm$ 0.01\\
7&CaX&557.76&0.66&0.06&0.77&\\
8&MgVIII&315.01&0.81&0.29&0.18&0.62 $\pm$ 0.02\\
9&SiVIII&316.22&0.81&0.40&0.06&0.63 $\pm$ 0.02\\
10&MgIX&368.06&0.95&0.07&0.76&\\
11&SiIX&349.9&1.07&--0.13&0.55&\\
12&MgX&624.94&1.10&0.06&0.80&\\
\hline
\end{tabular}
\end{table}