\begin{table}%t2
%\centering
\par
\caption{The scaleheights of the thin disk, assuming a scalelength
of $h_r=2.0~ {\rm kpc})$ and $h_1(h_r=3.5~ {\rm kpc})$,
respectively. The numbers in brackets are the corresponding values of $\chi^2$.  \label{scaleheights}}
\begin{tabular}{r|l l}
\hline\hline
CADIS field&$h_1(h_r=2.0 {\rm kpc})$&$h_1(h_r=3.5 {\rm kpc})$\\ \hline
1~h&$249\pm25$ $(0.92)$&$255\pm26$ $(0.92)$\\
9~h&$336\pm40$ $(1.21)$&$312\pm35$ $(1.21)$\\
13~h&$249\pm24$ $(0.62)$&$255\pm25$ $(0.63)$\\
16~h&$321\pm33$ $(0.41)$&$319\pm32$ $(0.41)$\\
23~h&$319\pm33$ $(1.23)$&$317\pm33$ $(1.21)$\\
\hline
\end{tabular}
\end{table}