\begin{table}%t3
\caption{\label{t:h30a}Recombination line observations.}
%\centering
$$
\begin{tabular}{l c r@{~}c@{~}l r@{~}c@{~}l r@{~}c@{~}l c r@{~}c@{~}l l}
\hline\hline\noalign{\smallskip}
Source & Line & \multicolumn{3}{c}{\TL, mK} 
              & \multicolumn{3}{c}{\TC, mK}
              & \multicolumn{3}{c}{$v_{\rm LSR}$, \km} 
              & $d$, kpc
              & \multicolumn{3}{c}{{\it FWHP}, \km}
              & Remark                         \\
\hline
SGRB2MC     &\Ha{30}&1514 &$\pm$&260 & 2561.1 &$\pm$&4.0 & 62.9 &$\pm$& 1.7 & 8.5 & 35.7 &$\pm$& 4.9\pfeiler\\
G10.62-0.38 &\Ha{30}& 609 & &  46 & 756.7 & & 1.4 &   0.0 & &  0.7 & 5.5 & 28.3 & &  1.6 & \\
G10.96+0.01E&\Ha{30}& $<$15 & & &  & &  & & & & & & & & (1)\\
G10.96+0.01W&\Ha{30}& $<$23 & & &  & &  & & & & & & & & (1)\\
G12.21-0.10 &\Ha{30}&  57 & &  34 &  236.9 & & 1.1 & 28.2 & &  4.1 & 13.2 & 15.4 & &  6.4 & \\
G25.5+0.2A  &\Ha{30}& $<$29 & & &  & &  & & & & & & & & (1)\\
G28.20-0.0N &\Ha{30}& 140 & &  18 &  172.1 & & 0.7 & 38.6 & &  1.4 & 5.7& 35.3 & &  3.4 \\
G28.20-0.0S &\Ha{30}&  27 & &   7 & 67.7 & & 0.5 & 41.9 & &  2.0 & 5.7 &  21.3 & &  4.2 \\
            &\Ha{39}&  30 & &   3 & 48.3 & & 0.3 & 41.4 & &  0.8 &     &  24.5 & &  1.9 \\[1ex]
G28.28-0.36 &\Ha{30}&  61 & &  18 &  5.4 & & 0.9 & 40.8 & &  3.8 & 3.0& 31.5 & &  6.4 \\ 
G29.96-0.02 &\Ha{30}& 378 & &  45 &  331.5 & & 0.6 & 97.5 & &  1.0 & 8.5& 28.0 & &  2.7 &
                                                             flat--topped\\
G30.54+0.02 &\Ha{30}&  86 & &   8 &  217.1 & & 0.3 & 47.1 & &  0.9 & 11.3& 30.6 & &  2.2 \\
G31.41+0.31 &\Ha{30}& 299 & & 108 &  639.9 & & 3.6 & 99.0 & &  2.2 & 7.7& 17.5 & &  4.8 &
                                                                many lines\\
G32.80+0.19 &\Ha{30}& 230 & &  14 &  306.0 & & 0.5 & 14.1 & &  0.5 & 13.2& 28.5 & &  1.4 \\
G33.13-0.09 &\Ha{30}&  60 & &  10 &  103.6 & & 0.5 & 71.4 & &  1.7 & 9.5& 27.8 & &  3.2 \\
G33.560+0.20&\Ha{30}& $<$12 & & &  & &  & & & & & & & & (1)\\
G34.26+0.15B&\Ha{30}& 785 & & 141 &  1590.8 & & 2.9 & 51.1 & &  2.0 & 3.5& 55.4 & &  8.5 & 
                                                                many lines\\
G35.20-1.74 &\Ha{30}& 336 & &  17 &  283.5 & & 0.8 & 47.2 & &  0.5 & 3.3& 30.5 & &  1.2 \\
G41.71+0.11 &\Ha{30}& $<$16 & & &  & &  & & & & & & & & (1)\\
G43.89-0.78 &\Ha{30}& $<$23 & & &  & &  & & & & & & & & (1)\\
G45.07+0.13 &\Ha{30}& 103 & &  11 &  188.3 & & 0.5 & 50.0 & &  1.3 &8.1&  40.9 & &  3.3 \\
G45.12+0.13 &\Ha{30}& 412 & &  13 &  382.6 & & 0.5 & 60.9 & &  0.4 &6.3&  40.7 & &  1.0 \\
W51D        &\Ha{30}& 654 & &  92 &1079.3 & & 2.6 & 57.4 & &  1.3 & 5.5& 32.0 & &  3.6 \\
            &\Ha{39}& 666 & &  15 & 760.5 & & 1.3 & 54.9 & &  0.2 &    & 30.8 & &  0.5 \\
            &\He{39}&  81 & &  12 &       & &     & 58.9 & &  2.1 &    & 39.7 & &  4.2 \\[1ex]
G70.29+1.60 &\Ha{30}& 710 & &  14 & 365.2 & & 0.5 &--26.5 & &  0.3 &8.5 & 42.6 & &  0.7 &K3--50A \\
            &\He{30}&  65 & &  13 &       & &     &--27.2 & &  3.4 &    & 60.7 & &  9.4 \\
            &\Ha{39}& 655 & &  61 & 965.1 & & 0.9 &--25.5 & &  1.3 &    & 41.3 & &  2.9 \\
            &\He{39}&  54 & &  84 &       & &     &--22.7 & & 14.2 &    & 30.6 & & 38.8 \\[1ex]
G75.78      &\Ha{39}&  $<$78 & & &  & &  & & & & & & & & (1)\\
            &\Ha{30}&  $<$17 & & &  & &  & & & & & & & & (1)\\
G81.67+0.53 &\Ha{30}& 694 & &  15 &  643.3 & & 0.6 & --1.9 & &  0.2 &2.9&  30.3 & &  0.5 \\
G81.68+0.54 &\Ha{30}& 256 & &   8 &  265.5 & & 0.4 &  4.3 & &  0.3 &1.2&  30.3 & &  0.7 \\
NGC 7538B    &\Ha{30}& 430 & &  12 & 521.4 & & 0.6 & --60.1 & &  0.5 &2.0&  57.3 & &  1.3 \\
G111.612    &\Ha{30}&  77 & &   9 & 77.5 & & 0.7 & --64.4 & &  1.0 &2.0&  26.3 & &  2.4 \\
            &\Ha{39}& 102 & &   3 & 99.6 & & 0.3 & --65.9 & &  0.3 &   &  25.5 & &  0.5 \\
            &\He{39}&  11 & &   7 &      & &     & --48.6 & &  7.1 &   &  28.7 & & 13.5 \\[1ex]
NGC 7538IRS1 &\Ha{30}& 306 & &  12 & 431.3 & & 0.7 & --60.7 & &  0.6 & 2.0& 57.3 & &  1.7 \\ 
NGC 7538IRS2 &\Ha{30}& 222 & &   7 & 192.4 & & 0.7 & --63.6 & &  0.3 & 2.0& 35.3 & &  0.8 \\
            &\Ha{39}& 195 & &   5 & 307.6 & & 0.4 & --69.3 & &  0.3 &    & 36.0 & &  0.8 \\[1ex]
\hline
\end{tabular}
$$
\tablefoot{(1) 1$\sigma$ upper limit for 2.6 \km\ spectral resolution over a $\pm600$ \km\  range.}
\end{table}