\begin{table}%T4
%\centering
\par
\caption
{Effective temperatures, surface gravities, and masses of the thick-disk white 
dwarfs. The four coolest stars have higher masses than the rest;
however, the masses of the former may have been overestimated (see text).
\label{di_par}}
\begin{tabular}{llll}
\hline
\hline
star & $T_{\rm eff}$ & ${\rm log}~g$ & $M$ \\ 
   &${\rm K}$ & ${\rm cm ~s^{-2}} $  & \Msolar \\
\hline
  WD1013$-$010 &  8786 &  8.19 &  0.71 \\
  WD1334$-$678 &  8958 &  8.11 &  0.66 \\
  WD0352+052 & 10~234 &  8.00 &  0.60 \\
  WD0255$-$705 & 10~574 &  8.09 &  0.65 \\
\hline
WD1716+020 & 12~795 &  7.66 &  0.43 \\
  WD2029+183 & 12~976 &  7.73 &  0.47 \\
  WD0204$-$233 & 13~176 &  7.75 &  0.47 \\
  WD1952$-$206 & 13~742 &  7.78 &  0.49 \\
  WD0732$-$427 & 14~070 &  7.96 &  0.58 \\
  WD1327$-$083 & 14~141 &  7.79 &  0.50 \\
  WD1614$-$128 & 15~313 &  7.74 &  0.48 \\
 HS1432+1441 & 15~414 &  7.77 &  0.49 \\
 HE0508$-$2343 & 15~835 &  7.71 &  0.47 \\
 HE1124+0144 & 15~876 &  7.68 &  0.45 \\
  WD1426$-$276 & 17~526 &  7.67 &  0.45 \\
  WD1834$-$781 & 17~564 &  7.76 &  0.49 \\
  WD2350$-$083 & 17~966 &  7.76 &  0.49 \\
  WD1323$-$514 & 18~604 &  7.71 &  0.47 \\
  WD1507+021 & 19~384 &  7.79 &  0.51 \\
 HE0452$-$3444 & 20~035 &  7.82 &  0.53 \\
  WD1152$-$287 & 20~185 &  7.64 &  0.45 \\
  WD1410+168 & 20~757 &  7.74 &  0.49 \\
  WD2322$-$181 & 21~478 &  7.88 &  0.56 \\
 HE0416$-$1034 & 23~809 &  7.88 &  0.57 \\
 HS1338+0807 & 25~057 &  7.73 &  0.50 \\
 HE0409$-$5154 & 26~439 &  7.75 &  0.52 \\
 HS0820+2503 & 33~330 &  7.69 &  0.51 \\
\hline
\end{tabular}
\end{table}