\begin{table}%t5
%%\begin{center}
\par
\caption{\label{tab:lbol} Comparison between the bolometric luminosity
of the candidate driving sources and the H$_2$ luminosity of the excited
jets.}
\begin{tabular}{cccc}
\hline\hline
Source   & $L_{\rm bol}$      & $L_{\rm H_2}$$^a$               & $L_{\rm H_2}$/$L_{\rm bol}$ \\
         & ($L_{\odot}$)  & ($L_{\odot}$)               &  \\ 
\hline
25       & $>$2.6$^b$     & $ 2.0 \times 10^{-3}$	   & $<$$ 8\times 10^{-4}$ \\
37       & $>$1.3$^b$     & $ 1.6 \times 10^{-2}$	   & $<$$ 1.2 \times10^{-2}$ \\
40       & 11--245         & $ 3.1 \times 10^{-1}$ & $2.8\times 10^{-2}$--$1.3 \times10^{-3}$ \\
57       & 715$^c$        & $ 4.5 \times 10^{-2}$	   & $6.3 \times10^{-5}$ \\
\hline	
\end{tabular}
%%\end{center}
\par
Notes: $^{a}$ Computed by assuming the following $A_{\rm V}$ values: 10 mag for \#25 and
37 jets, 18 mag for \#57 jet (L02). For the main jet we adopted, for each knot,
the extinction value derived by the low-resolution spectroscopy.\\
$^b$ Derived by assuming blackbody extrapolation longward the last photometric point (that in $N$ band).\\
$^c$ Revised with respect to the value given by M99.
\end{table}