\begin{table}%t2
\caption{\label{Tab2}Nuclear and Integrated observed (not corrected for extinction) line ratios.}
%\centerline
 {\small \begin{tabular}{lcccccc}
\hline\hline
Galaxy & Type  & Size & [OIII]/H$\beta$ &[OI]/H$\alpha$ &[NII]/H$\alpha$
&[SII]/H$\alpha$ \\
(1) & (2) & (3) & (4) & (5) & (6) & (7) \\
\hline
NGC~23	      & Nuclear     & 0.28   &1.52      &0.091   &0.87
&0.48       \\
 & Integrated  & 4.5    &0.58      &0.044   &0.57  &0.33       \\
\\
MCG~+12-02-001 & Nuclear     & 0.31   &0.67      &0.029   &0.44
&0.30      \\ 
	      & Integrated  & 5.8    &0.61      &0.030   &0.42
              &0.35      \\ 
\\
UGC~1845	      & Nuclear     & 0.30   &2.07      &0.090   &1.09
&0.33      \\ 
	      & Integrated  & 3.2    &1.33      &0.065   &0.72
              &0.28      \\ 
\\
NGC~2388	      & Nuclear     & 0.28   &0.32      &0.029   &0.63
&0.22      \\
	      & Integrated  & 5.1    &0.60      &0.066  &0.56
              &0.30      \\
\\
MCG~+02-20-003 & Nuclear     & 0.33   &0.67      &0.054   &0.63
&0.37      \\ 
	      & Integrated  & 6.5    &0.65      &0.046   &0.45
              &0.43      \\ 
\\
IC~860	      & Nuclear     & 0.29   & $\cdots$  & $\cdots$     &7.81
&3.85      \\
\\
NGC~5936	      & Nuclear     & 0.30   &0.32	&0.031   &0.63
&0.22      \\
	      & Integrated  & 4.7    &0.24      &0.034   &0.48
              &0.25      \\  
\\
NGC~6701	      & Nuclear     & 0.27   &0.68      &0.065   &0.72
&0.35      \\  
	      & Integrated  & 5.2    &0.62      &0.054   &0.67
              &0.35      \\ 
\\
NGC~7469$^{*}$	      & Nuclear     & 0.32   &9.96      &0.13    &4.10
&0.39      \\
                      & Integrated & 6.1   & 3.53   & 0.048 & 0.55 & 0.30
\\
\\
NGC~7591	      & Nuclear     & 0.32   &0.98      &0.11    &0.96
&0.41      \\      
	      & Integrated  & 5.1 & 0.85 & $\cdots$ & 0.85 & 0.59 \\
\\
NGC~7771	      & Nuclear     & 0.28   &0.22      &0.032   &0.40
&0.21      \\
	      & Integrated  & 8.0    &0.42      &$\cdots$      &0.55
              &0.43  \\ 
\hline
\end{tabular} }
\medskip 
Notes. -- Column~(2): PMAS type of 1D spectra. Column~(3): linear physical size in kpc covered by the PMAS extraction apertures for the 
nuclear and  integrated spectra using the distances given by Sanders et~al. (2003) for the {IRAS} RBGS. Columns~(4)--(7):
observed (not corrected for extinction and/or stellar absorption) line
ratios; $^{*}$~for NGC~7469 the line ratios correspond to the narrow components of the hydrogen recombination lines.
\end{table}