\begin{table}%t7
\begin{scriptsize}
\caption{\label{Table:Parameters}Physical parameters and chemical abundances.}
\small%\centering
\par
\begin{tabular}{cccccccccc}       
\hline\hline\noalign{\smallskip}
Parameter         & \multicolumn{2}{c}{Mrk~407} &		   
                    \multicolumn{3}{c}{Mrk~32}  &
                    \multicolumn{2}{c}{Mrk~750} &
                    \multicolumn{2}{c}{Mrk~206} \\    
                  & \multicolumn{1}{c}{Nuclear}    & 
		    \multicolumn{1}{c}{Integrated} &
                    \multicolumn{1}{c}{Knot~AB}    & 
		    \multicolumn{1}{c}{Knot~C}      & 
		    \multicolumn{1}{c}{Integrated} &
                    \multicolumn{1}{c}{Nuclear}    & 
		    \multicolumn{1}{c}{Integrated} &
                    \multicolumn{1}{c}{Nuclear}    & 
		    \multicolumn{1}{c}{Integrated} \\
\hline\noalign{\smallskip}
$N_{\rm e}$([\ion{S}{ii}]) (cm$^{-3}$)    &  
                    188              &  
		    197              &                   % mrk407 
                    110              &  
		    154              &    
		    169              &  % mrk32 
                    $< $$100$          &  
		    $< $$100$          &                   % mrk750
                    154              &  
		    $< $$100$         \\  % mrk206
$T_{\rm e}$([\ion{O}{ii}]) (10$^{4}$ K)   &        
                    --              & 
		    --              &                   % mrk407 
                    $1.54\pm0.22$    & 
		    --              & 
		    --              &  % mrk32 
                    $1.13\pm0.02$    &  
		    $1.23\pm0.09$    &                   % mrk750
                    --              &  
		    --             \\  % mrk206            
$T_{\rm e}$([\ion{O}{iii}]) ($10^{4}$ K)  &  
                    --              & 
		    --              &                   % mrk407 
                    $1.77\pm0.31$    & 
		    --              & 
		    --              &  % mrk32 
                    $1.21\pm0.03$    &  
		    $1.34\pm0.13$    &                   % mrk750
                    --              & 
		    --             \\  % mrk206              
$12+\log({\rm O/H})$ -- ($T_{\rm e}$)        &  
                    --              & 
		    --              &                   % mrk407 
                    $7.56\pm0.10$    & 
		    --              & 
		    --              &  % mrk32 
                    $8.12\pm0.03$    &  
		    $8.00\pm0.07$    &                   % mrk750
                    --              & 
		    --              \\  % mrk206                
$12+\log({\rm Ne}^{++}/{\rm H}^{+})$        &  
                    --              & 
		    --              &                   % mrk407 
                    $6.88\pm0.18$    & 
		    --              & 
		    --              &  % mrk32 
                    $7.37\pm0.04$    &  
		    $7.27\pm0.12$    &                   % mrk750
                    --              & 
		    --             \\  % mrk206                  
$12+\log({\rm S}^{+}/{\rm H}^{+})$        &  
                    --              & 
		    --              &                   % mrk407 
                    $5.80\pm0.09$    & 
		    --              & 
		    --              &  % mrk32 
                    $5.69\pm0.02$    &  
		    $5.70\pm0.06$    &                   % mrk750
                    --              & 
		    --             \\  % mrk206             
$12+\log({\rm N}^+/{\rm H}^+)$    &  
                      --            & 
		      --            &                   % mrk407 
                    $6.03\pm0.12$    & 
		    --              & 
		    --              &  % mrk32 
                    $6.34\pm0.02$    &  
		    $6.26\pm0.06$    &                   % mrk750
                    --              & 
		    --             \\  % mrk206               
$\log({\rm N/O})$      &
                    --              & 
		    --              &                   % mrk407 
                    $-1.19\pm0.20$   & 
		    --              & 
		    --              &  % mrk32 
                    $-1.29\pm0.05$   & 
		    $-1.26\pm0.12$   &                 % mrk750
                    --              & 
		    --             \\  % mrk206               
$12+\log({\rm O/H})$ -- (N2)                 &  
                    8.26             &  
		    8.24             &                   % mrk407 
                    8.16             &  
		    8.24             & 
		    8.22             &  % mrk32 
                    8.17             &  
		    8.17             &                   % mrk750
                    8.44             &  
		    8.48            \\  % mrk206       
$12+\log({\rm O/H})$ -- (O3N2)    &  
                    8.24             &  
		    8.24             &                   % mrk407 
                    8.17             &  
		    8.25             & 
		    8.25             &  % mrk32 
                    8.10             &  
		    8.11             &                   % mrk750
                    8.41             &  
		    8.42            \\  % mrk206
$\log$([\ion{O}{iii}]5007/$\Hb$)      &  
                    $0.50\pm0.02$    & 
		    $0.43\pm0.04$    &                   % mrk407 
                    $0.45\pm0.02$    & 
		    $0.40\pm0.02$    & 
		    $0.34\pm0.03$    &  % mrk32 
                    $0.70\pm0.01$    & 
		    $0.68\pm0.01$    &                   % mrk750
                    $0.29\pm0.01$    & 
		    $0.31\pm0.03$   \\  % mrk206 
$\log$([\ion{N}{ii}]6584/$\Ha$)     &  
                    $-1.05\pm0.04$   & 
		    $-1.10\pm0.09$   &                   % mrk407 
                    $-1.30\pm0.08$   & 
		    $-1.09\pm0.07$   & 
		    $-1.14\pm0.10$   &  % mrk32 
                    $-1.28\pm0.02$   & 
		    $-1.27\pm0.04$   &                   % mrk750
                    $-0.72\pm0.02$   & 
		    $-0.67\pm0.05$  \\  % mrk206
$\log$([\ion{S}{ii}]6717+6731/$\Ha$)     & 
                    $-0.70\pm0.03$   & 
		    $-0.63\pm0.07$   &                   % mrk407 
                    $-0.63\pm0.02$   & 
		    $-0.69\pm0.04$   & 
		    $-0.51\pm0.05$   &  % mrk32 
                    $-1.00\pm0.01$   & 
		    $-0.91\pm0.03$   &                   % mrk750
                    $-0.68\pm0.02$   & 
		    $-0.62\pm0.05$  \\  % mrk206
$\log$([\ion{O}{i}]6300/$\Ha$)     & 
                    --              &  
		    --              &                   % mrk407 
                    $-1.50\pm0.07$   & 
		    $-1.47\pm0.10$   & 
		    $-1.27\pm0.07$   &  % mrk32 
                    $-2.04\pm0.03$   &  
		    --              &                   % mrk750
                    $-1.64\pm0.04$   &  
		    --             \\ % mrk206
\hline
\end{tabular}
\tablefoot{$T_{\rm e}([\ion{O}{ii}])$ derived from the relation: 
$T_{\rm e}([\ion{O}{ii}])=0.72 \times T_{\rm e}([\ion{O}{iii}]) + 0.26$
found by \cite{Pilyugin2006}; 
$T_{\rm e}$([\ion{O}{iii}]): electron temperature measured from 
[\ion{O}{iii}]~$\lambda4363$; 
$12+\log({\rm O/H})$ -- ($T_{\rm e}$): direct O/H abundance derived 
from $T_{\rm e}$([\ion{O}{iii}]); 
$12+\log({\rm O/H})$ -- (N2): O/H derived from the N2 index 
\citep{PettiniPagel2004}; the associated uncertainty is $\pm$$0.38$; 
$12+\log({\rm O/H})$ -- (O3N2): O/H derived from the O3N2 
index \citep{PettiniPagel2004}; the associated uncertainty is $\pm$$0.25$. }
\end{scriptsize}
\end{table}