\begin{table}%T7
     %\centering
\par
      \caption{\label{tab:intensities}Velocity-integrated intensities$^{a}$.}
     \small%\centerline
{
         \begin{tabular}{lcccccccc}
            \hline \hline
            \noalign{\smallskip}
            Galaxy & $I$(CO) 1--0 & $I$(CO) 2--1 & $I$(CN) 1--0 & $I$(CN) 2--1 & $I$(HCN) 1--0$^{b}$ & $I$(HCN) 3--2 & $I$(HNC) 1--0 & $I$(HNC) 3--2 \\
            \hline
      NGC~3079 & 205.8~$\pm$~20.6 & 375.4~$\pm$~37.6 & 2.7~$\pm$~0.4 & 4.5~$\pm$~0.7 & 5.7~$\pm$~0.8 & 8.0~$\pm$~1.4 & 2.9~$\pm$~0.5 & 5.0~$\pm$~1.9\\
		NGC~1068 & 113.7~$\pm$~11.4 & 203.6~$\pm$~20.5 & 9.4~$\pm$~1.0 & 6.1~$\pm$~0.7 & 10.0~$\pm$~1.7 & 22.7~$\pm$~2.5 & 3.2~$\pm$~0.5 & 3.5~$\pm$~0.6\\
NGC~2623 & 30.2~$\pm$~3.2$^{c}$ & -- & $\la$1.3$^{c}$ & -- & -- & $\la$0.5 & 0.9~$\pm$~0.3$^{c}$ & 1.8~$\pm$~0.4\\
		NGC~1365 & 122.3~$\pm$~12.3 & 181.0~$\pm$~18.1$^{d}$ & 5.9~$\pm$~0.7 & 7.5~$\pm$~0.9 & 6.0~$\pm$~0.1 & 15.0~$\pm$~2.0 & 4.7~$\pm$~0.6 & \\
		NGC~7469 & 25.6~$\pm$~3.8$^{~\rm e}$ & 61.5~$\pm$~6.4 & 1.8~$\pm$~0.3$^{~\rm c}$ & -- & 1.5~$\pm$~0.3 & -- & 1.1~$\pm$~0.2$^{~\rm c}$ & $\la$0.8\\
            \noalign{\smallskip}
            \hline
         \end{tabular}}
     \smallskip
\begin{list}{}{}
\item[$^{{a}}$] The values refer to the main-beam brightness temperature, $I_{\rm mb}$, 
in [K~\kms]. The errors and upper limits correspond to $1\sigma$ (defined by the rms in the spectra)
and added in quadrature to the 10\% of error considered for the main beam efficiencies, $\eta_{\rm mb}$, 
reported in Table~\ref{tab:beams} and by the Onsala Space Observatory (OSO).
\item[$^{{b}}$] HCN~1$-$0 integrated intensities reported by Curran et~al. (\cite{curran00}) 
corrected for a main-beam efficiency of 0.65, according to the on-line values reported by OSO. Our own data are reported for NGC~3079.
\item[$^{{c}}$] Integrated intensities reported by Aalto et~al. (\cite{aalto02}). The values were 
rounded to one decimal figure and corrected by the main beam efficiencies reported by OSO, 0.64, 0.45 and 0.43, of the $J=1{-}0$~transition of HNC, CN and CO, respectively.
\item[$^{{d}}$] CO~2--1 integrated intensity obtained by Sandqvist \etal~(\cite{sandqvist95}). A 10\% of error was assumed for the reported intensity.
\item[$^{{e}}$] CO~1$-$0 integrated intensity derived from Curran \etal~(\cite{curran00}) considering a main beam efficiency of 0.43 according to the values reported by~OSO.
\end{list}
\end{table}