\begin{table}%tB.4
\caption{\label{par_classI}Parameters of the 44~GHz \METH\ maser (Class~I) detected with the Nobeyama 45-m
telescope for both \high\ (the IRAS name begins with H) and \low\ (the IRAS name
is begins with L) sources.}
%\centering
\par
\begin{tabular}{cccccc}
\hline \hline
\noalign{\smallskip}
Source\tablefootmark{a} & \Vlsr\ & $\int F_{\nu} {\rm d}V$  &    $V$     &      $\Delta V$    &     $F_{\nu}^{\rm peak}$  \\
        & (km s$^{-1}$)  &  (Jy km s$^{-1}$)  & (km s$^{-1}$)  &  (km s$^{-1}$)  &  (Jy)  \\
\hline
 H05168+3634           &  --15.1  &   1.12 $\pm$ 0.2   &      --4.9 $\pm$ 0.2    &      1.3 $\pm$ 0.4     &    0.80           \\
 H05480+2545          &   --9.3\tablefootmark{b}  & 3.3 $\pm$ 0.1 &     --9.79 $\pm$ 0.02 &    0.77 $\pm$ 0.05 &     4.08 \\    
 H06103+3030          &  15.6   &  2.7 $\pm$ 0.6       &   16.4 $\pm$ 0.7      &        5 $\pm$ 1.5       &  0.51    \\
 H18089-1732          &   32.9 &  10.9 $\pm$ 0.4     &     31.94 $\pm$ 0.01 &    0.86 $\pm$ 0.04 &     11.8  \\     
 H18151-1208          &   32.8 &  2.2 $\pm$ 0.2   &       30.5 $\pm$ 0.1      &   1.5 $\pm$ 0.3      &   1.34    \\
           &    &  2.0 $\pm$ 0.4    &      33.8 $\pm$ 0.2       &   2.1 $\pm$ 0.5      &   0.89    \\
 H18159-1648          &   22.1 &  4.0 $\pm$ 0.6      &    13.2 $\pm$ 0.1      &   0.9 $\pm$ 0.1       &   3.95    \\
           &    &  10.9 $\pm$ 0.6      &    19.5 $\pm$ 0.1      &    1.0 $\pm$ 0.1        &   10.01    \\
           &    &  15.8 $\pm$ 0.6     &    20.9 $\pm$ 0.1     &   1.0 $\pm$ 0.1      &    6.97    \\
           &    &  31.4 $\pm$ 0.6     &    22.9 $\pm$ 0.1      &   0.9 $\pm$ 0.1      &    32.11    \\
           &    &  18.5 $\pm$ 0.6    &    23.9 $\pm$ 0.1     &   0.6 $\pm$ 0.1      &    27.9    \\
 H18316-0602          &   42.2 &  6.6 $\pm$ 0.1  &    42.060 $\pm$ 0.008  &    0.62 $\pm$ 0.02  &     9.88  \\     
           &    &  1.6 $\pm$ 0.2     &     43.10 $\pm$ 0.04  &   0.70 $\pm$ 0.09   &  2.07    \\
           &    &  2.9 $\pm$ 0.4      &    44.52 $\pm$ 0.09    &   1.6 $\pm$ 0.3      &   1.67     \\
 H18360-0537          &   102.3  &  6.7 $\pm$ 0.4      &    102.4 $\pm$ 0.1    &   2.83 $\pm$ 0.2        &  2.23    \\
           &     &  1.6 $\pm$ 0.4    &      106.4 $\pm$ 0.3     &     1.9 $\pm$ 0.7      &   0.74  \\ 
 H18507+0121          &   57.1 &  10.0 $\pm$ 0.4    &     60.33 $\pm$ 0.04 &      1.3 $\pm$ 0.1 &         7.00 \\    
 H18517+0437          &   43.7 &  3.1 $\pm$ 0.2     &     43.97 $\pm$ 0.05 &      1.1 $\pm$ 0.1 &         2.70   \\  
 H19043+0726          &   58.9  &  2.5 $\pm$ 0.2     &    58.69 $\pm$ 0.03   &  0.65 $\pm$ 0.09 &     3.52    \\ 
           &     &  1.1 $\pm$ 0.2    &      59.89 $\pm$ 0.08 &    0.7 $\pm$ 0.2     &    1.31    \\
 H19088+0902          &   59.6  &  10 $\pm$ 1      &    58.67 $\pm$ 0.07   &   2.2 $\pm$ 0.2      &   2.0     \\
 H19388+2357          &   34.6 &  1.8 $\pm$ 0.4   &       35.4 $\pm$ 0.2     &    1.6 $\pm$ 0.4     &    1.07    \\
 H20050+2720          &   6.4   &  2.0 $\pm$ 0.2      &    6.6 $\pm$ 0.1      &   1.8 $\pm$ 0.3      &   1.09     \\
 H20062+3550          &   0.6 &  2.5 $\pm$ 0.2     &    0.60 $\pm$ 0.06 &     1.0 $\pm$ 0.1  &        2.36  \\   
 H20126+4104          &   --3.9 &  8.9 $\pm$ 0.4    & --2.43 $\pm$ 0.04 &     2.0 $\pm$ 0.1  &        4.17    \\ 
 H20188+3928          &   1.5   &  2 $\pm$ 1   &      3 $\pm$ 1    &    3 $\pm$ 2         &   0.76  \\
 H21391+5802          &    0.4  &  4.2 $\pm$ 0.2    & --0.49 $\pm$ 0.02 &    0.73 $\pm$ 0.08 &     5.33  \\   
           &      &  5.4 $\pm$ 0.4    &      6.6 $\pm$ 0.1   &   2.3 $\pm$ 0.3      &    2.25     \\
 H22506+5944          & --51.5 &  3 $\pm$ 1   & --51.3 $\pm$ 0.1  &        1.6 $\pm$ 0.6    &      1.81 \\
          &     &  4 $\pm$ 2   & --48 $\pm$ 1  &        5 $\pm$ 2    &      0.8 \\
 L00420+5530          & --51.20  &   1.6 $\pm$ 0.4  & --48.8 $\pm$ 0.3    &      2.0 $\pm$ 0.5    &     0.8 \\
 L18018-2426          &    10.5  &  241.1 $\pm$ 0.4     &     11.280 $\pm$ 0.003 &    0.669 $\pm$ 0.002  &    339 \\    
 L18024-2119          &   0.5   &   10.0 $\pm$ 0.4      &   0.31 $\pm$ 0.02 &     1.28 $\pm$ 0.05   &   7.34    \\
           &      &  3.1 $\pm$ 0.4       &   2.7 $\pm$ 0.1      &   2.3 $\pm$ 0.3      &   1.4     \\
 L18144-1723          &   47.3 &   42.1 $\pm$ 0.2     &    48.590 $\pm$ 0.005 &      1.54 $\pm$ 0.01  &    25.6 \\     
 L18162-1612          &   61.8 &   5.1 $\pm$ 0.2  &    62.80 $\pm$ 0.03 &    0.84 $\pm$ 0.07  &    3.2  \\     
 L18396-0431          &   97.3 &   1.0 $\pm$ 0.2      &    97.6 $\pm$ 0.1      &   1.0 $\pm$ 0.3   &      1.0    \\
 L19092+0841          &   58.0 &   4.0 $\pm$ 0.4        &  59.07 $\pm$ 0.4       &  5.7 $\pm$ 0.7       &  0.65     \\
 L23385+6053          & --50.0  &  2.9 $\pm$ 0.4      & --50.6 $\pm$ 0.3      &    3.2 $\pm$ 0.7     &    0.9    \\
 \hline
\end{tabular}
\tablefoot{
\tablefoottext{a}{``L'' and ``H'' indicate if the source belongs to the \low\ or \high\ sample;}
\tablefoottext{b}{from \AMM\ observations performed with the Nobeyama 45-m telescope.}
}
\end{table}