\begin{table}%T3
\caption{Observed line fluxes $\int T_{\rm{MB}} {\rm d}V$ (K km s$^{-1}$)
  from Gaussian fits, and 1$\sigma$ upper limits$^a$.}
\label{tab:flux}
%\centerline
{
\begin{tabular}{lllrrrrrrr}
\hline \hline
\noalign{\smallskip}
Transition & W3$^b$ &AFGL &\multicolumn{2}{c}{NGC 7538} &Mon R2 &S140 &NGC 6334 &AFGL  & W33A\\
           & IRS5   &  2591  &IRS1      &IRS9           &IRS3  &IRS1 &IRS1    & 2136 &     \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
$\rm H_2CS$ $7_{16}\to6_{15}$  &     0.8 &1.4 &3.8 &1.6 &0.9 &1.5 &10.6 &0.3 &2.9\\
$\rm H_2CS$ $10_{19}\to9_{18}$ &$<$0.3   &1.1 &3.5 &1.2 &0.3 &0.8 &...  &1.0 &3.6\\
HCS$^+$  $6\to5$             &0.3      &... &... &... &...&... &...  &... &...\\
HCS$^+$  $8\to7$             &0.3      &0.6 &1.6 &0.8 &...    &0.7 &16.6 &0.3 &1.1\\
$\rm H_2S$ $1_{10}\to1_{01}$ & 9.4 &13.1&15.4&7.7 & 7.6   &14.3&...  &6.7 &17.8\\
$\rm H_2S$ $2_{11}\to2_{02}$ & 2.6 &... &1.6 &... &   ... &... &...  &   ... &...\\
$\rm H_2S$ $2_{20}\to2_{11}$ & 2.2 &0.8 &1.9 &0.4 &$<$0.2 &0.6 &22.8 &$<$0.1 &1.9\\
NS $11/2\to9/2$            &... &0.9    &0.9    &0.5 &$<$0.4 &0.5 &15.9 &$<$0.2 &2.2\\
NS $15/2\to13/2$           &... &$<$0.8 &$<$1.2 &... &... &... &11.6 &... & 2.8\\
OCS $13\to 12$ &      ... & 0.4 &0.8  &0.3   &... &$<$0.3&...&...&...\\
OCS $28\to 27$ &      0.9 & 0.3 &...  &...   &... &... &...&...&2.6\\
OCS $30\to 29$ & $<$0.4   & 0.3 &...  &...   &... &... &...&...&...\\
$\rm OC^{34}S$ $18\to 17$ &     ... &...  &...   &... &... &... & 4.8 &...&0.4\\
$\rm OC^{34}S$ $22\to 21$ &$<$0.1   &...  &...   &... &... &... &11.6 &...&...\\
SO $5_6 \to 4_5$ &     17.4 &9.9 &8.4 &1.3 &3.7 &10.8 &... &2.0&3.0\\
 broad           &     11.2 &4.5 &6.5 &5.2 &3.6 &3.7  &... &1.2&5.1\\
SO $6_6 \to 5_5$ &     26.1 &5.3 &5.8 &2.5 &3.5 &4.0  &26.1$^d$ &0.4&3.1$^d$\\
 broad           &     22.1 &2.5 &5.7 &1.5 &1.4 &2.6  &...      &0.6&...\\
SO $6_7 \to 5_6$ &     14.7 &7.3 &10.0 &3.0 &4.8 &5.7 &... &1.5&3.5\\
 broad           &     13.2 &3.7 & 7.3 &3.0 &3.1 &4.7 &... &1.3&5.6\\
SO $8_7 \to 7_6$ &     17.9 &3.7 &6.5$^c$ &1.3 &... &2.6 &14.5 &$<$0.2&1.8$^d$\\
  broad          &     26.8 &5.1 &...     &2.4 &... &5.5 &23.4 &$<$0.2&...\\
SO $8_8 \to 7_7$ &     31.7 &3.4 &9.5 &4.7$^c$ &... &2.6 &47.3$^d$ &1.5&4.1\\
  broad          &     28.8 &4.5 &6.7 &..      &... &5.0 &...      &0.5&6.4\\
SO $8_9 \to 7_8$ &     27.9 &5.6 &8.3 &1.5 &3.6 &3.9 &26.4 &1.4$^d$&2.2\\
  broad          &     58.1 &5.1 &5.9 &3.9 &5.7 &6.0 &34.4 &...    &6.7\\
$\rm ^{34}SO$   $8_8 \to 7_7$ &    18.9 &2.7 &0.9 &$<$0.3 &... &$<$0.4 &19.6 &...&$<$0.7\\
%                                                     2591 IRS1 IRS9  IRS3  S140  6334  2136
$\rm SO_2$ $5_{24}\to 4_{13}$&      8.2 &2.3 &2.0 &0.7 &1.0 &1.1   &6.8$^e$ &...&...\\
$\rm SO_2$ $5_{33}\to 4_{22}$&     12.2 &... &... &... &... &...   &... &...&2.9\\
$\rm SO_2$ $5_{33}\to 5_{24}$&      6.9 &... &... &... &... &$<$1  &... &...&...\\
$\rm SO_2$ $5_{51}\to 6_{42}$& $<$0.3   &... &... &... &... &...   &7.1 &...&...\\
$\rm SO_2$ $6_{33}\to 6_{24}$&     20.8 &3.0 &1.7 &0.6 &1.6 &1.1   &12.1&$<$0.1&2.2\\
$\rm SO_2$ $7_{35}\to 7_{26}$&     10.2 &1.7 &1.1 &$<$0.4&0.7 &0.5 &... &...&1.0\\
$\rm SO_2$ $8_{35}\to 8_{26}$&     12.7 &1.7 &0.9 &0.4 &0.7 &  0.7 &5.9 &$<$0.2&1.4\\
$\rm SO_2$ $9_{37}\to 9_{28}$&      9.6 &2.4 &1.5 &$<$0.2 &... &$<$0.5 &... &...&3.7\\
%                                                         2591 IRS1   IRS9  IRS3 S140 6334  2136
$\rm SO_2$ $10_{64}\to 11_{57}$    &      3.4 &1.7 &$<$0.4&... &... &... &... &...&0.8\\
$\rm SO_2$ $11_{1,11}\to 10_{0,10}$&      ... &... &...   &... &... &... &... &0.3&...\\
$\rm SO_2$ $11_{39}\to 11_{2,10}$  &      ... &... &...   &... &... &... &... &...&1.6\\
$\rm SO_2$ $13_{1,13}\to 12_{0,12}$&     19.0 &2.7 &2.2   &0.7&1.5  &1.5 &8.8 &$<$0.2&1.7\\
$\rm SO_2$ $14_{0,14}\to 13_{1,13}$&     12.2 &2.8 &1.7   &... &1.3 &1.3 &... &0.3&1.9\\
$\rm SO_2$ $15_{6,10}\to 16_{5,11}$&      ... &0.6 &...   &... &... &... &... &...&...\\
$\rm SO_2$ $16_{4,12}\to 16_{3,13}$&     29.5 &... &...   &... &... &... &... &0.6&2.0\\
$\rm SO_2$ $18_{1,17}\to 18_{0,18}$&      7.7 &1.0 &...   &... &... &... &... &...&0.7\\
$\rm SO_2$ $18_{4,14}\to 18_{3,15}$&     13.3 &2.9 &...   &... &1.2 &... &... &...&1.3\\
$\rm SO_2$ $19_{1,19}\to 18_{0,18}$&     31.7 &2.6 &$<$0.4&$<$0.4&...&$<$0.7&7.0 &0.4&...\\
$\rm SO_2$ $20_{1,19}\to 19_{2,18}$&     16.0 &2.7 &...   &... &... &... &... &...&...\\
$\rm SO_2$ $22_{2,20}\to 22_{1,21}$&      5.5 &0.8 &...   &... &... &... &1.7 &...&0.5\\
$\rm SO_2$ $24_{2,22}\to 23_{3,21}$&      6.1 &3.2 &$<$0.6&... &... &... &... &...&...\\
$\rm SO_2$ $25_{3,23}\to 25_{2,24}$&      4.1 &2.8 &1.4   &... &... &... &... &...&1.0\\
$\rm SO_2$ $28_{2,26}\to 28_{1,27}$&     11.3 &... & ...  &... &... &... &... &...&0.6\\
$\rm ^{34}SO_2$ $7_{44}\to 7_{35}$      &      2.4 &1.0 &...   &... &... &... &... &...&...\\
$\rm ^{34}SO_2$ $10_{46}\to 10_{37}$    &      2.5 &1.1 &...   &... &... &... &... &...&...\\
$\rm ^{34}SO_2$ $11_{39}\to 11_{2,10}$  &      ... &1.1 &...   &... &... &... &... &...&0.8\\
$\rm ^{34}SO_2$ $15_{2,14}\to 14_{1,13}$&      0.7 &1.1 &...   &... &... &... &... &...&0.8\\
$\rm ^{34}SO_2$ $19_{1,19}\to 18_{0,18}$&      5.8 &1.2 &$<$0.4&$<$0.4&... &$<$0.4 &... &...&...\\
$\rm ^{34}SO_2$ $29_{9,21}\to 30_{8,22}$& $<$0.2   &... &...   &... &... &... &... &...&0.3\\
\hline
\end{tabular}}
\par
\medskip
$^a$ Dots denote missing data; 
$^b$ From \citet{helm97}, except SO;  
$^c$ Attributed to envelope based on center velocity; 
$^d$ Attributed to envelope based on line width; 
$^e$ Difficult fit due to partial blend with other lines. 
\end{table}