\begin{table}%T2
\caption{Magnetic fields derived from the four strongest lines in our
sample of central stars of planetary nebulae. The error margins
correspond to a $1\sigma$ (68.3\%\ confidence) and
$6.6\sigma$ (99\%\ confidence) level.
}
\label{t:mf}
%\centering
\par
\begin{tabular}[c]{lcrrrrr}
\hline
\hline
\multicolumn{1}{c}{Target} &
\multicolumn{1}{c}{Date} &
\multicolumn{4}{c}{$B$/G} &
\multicolumn{1}{c}{$B$/G}
\\
\multicolumn{1}{c}{}  &
\multicolumn{1}{c}{}  &
\multicolumn{1}{c}{H$\delta+$He~\textsc{ii}} & \multicolumn{1}{c}{H$\gamma+$He~\textsc{ii}} &
\multicolumn{1}{c}{He~\textsc{ii} 4686} & \multicolumn{1}{c}{H$\beta+$He~\textsc{ii}} &
\multicolumn{1}{c}{total}  \\
\hline
NGC~1360 &03/11/03& $-493\pm 835$ & $2483\pm688$
&   $-1114\pm427$ &    $-1355\pm413$ &  $-1343\pm259$  \\
&& $(\pm 2153)$ & $(\pm 1772)$
&   $(\pm 1101)$ &    $(\pm 1066)$ &  $(\pm 668)$  \\[2pt]
NGC~1360&14/12/03& $342\pm 624$ & $3553\pm528$
&   $1726\pm426$ &    $768\pm543$ &  $1708\pm257$  \\
&& $(\pm 1607)$ & $(\pm 1361)$
&   $(\pm 1099)$ &    $(\pm 1399)$ &  $(\pm 664)$  \\[2pt]
NGC~1360&15/12/03& $3146\pm 735$ & $2082\pm695$
&   $3714\pm389$ &    $1324\pm557$ &  $2832\pm269$  \\
&& $(\pm 1895)$ & $(\pm 1790)$
&   $(\pm 1002)$ &    $(\pm 1437)$ &  $(\pm 695)$  \\[2pt]
NGC~1360&16/12/03& $2548\pm 1024$ & $1303\pm505$
&   $-1176\pm591$ &    $316\pm438$ &  $194\pm277$  \\
&& $(\pm 2638)$ & $(\pm 1302)$
&   $(\pm 1522)$ &    $(\pm 1128)$ &  $(\pm 2548)$  \\[2pt]
EGB~5&14/12/03& $577\pm 1171$ & $2875\pm1022$
&   $484\pm4707$ &    $2171\pm837$ &  $1992\pm562$  \\
&& $(\pm 3016)$ & $(\pm 2633)$
&   $(\pm 12121)$ &    $(\pm 2156)$ &  $(\pm 1449)$  \\[2pt]
LSS~1362&15/12/03& $-299\pm 1295$ & $2089\pm729$
&   $3608\pm894$ &    $1550\pm531$ &  $1891\pm371$  \\
&& $(\pm 3335)$ & $(\pm 1878)$
&   $(\pm 1848)$ &    $(\pm 1368)$ &  $(\pm 912)$  \\[2pt]
Abell~36&26/01/04& $1863\pm 1144$ & $-448\pm949$
&   $1842\pm1134$ &    $1553\pm719$ &  $1169\pm466$  \\
&& $(\pm 2946)$ & $(\pm 2444)$
&   $(\pm 2920)$ &    $(\pm 1852)$ &  $(\pm 1202)$  \\[2pt]
\hline
\end{tabular}
\end{table}