\begin{table}%t3
\caption{\label{distances}Our distance and age estimates together with 
selected values from the literature.} 
\small%\centering
\par
\begin{tabular}{llll}
\hline\hline 
Cluster & Method & Distance & Age \\
        &        & kpc      & Myr \\
        \hline 
NGC~3293  && \\
Freyhammer et~al. (\cite{Fre05}) & Eclipsing Binary     
&  2.8 $\pm$ 0.3  & 10--13  \\
Baume et~al. (\cite{Bau03})      & $\it UBVRI$ MS fitting           
&  2.8 $\pm$ 0.3  & 6.5--10 \\
Shobbrook (\cite{Sho83})         & $\it uvby\beta$ sequence fitting 
&  2.5 $\pm$ 0.1  & --      \\
This paper (33 stars)    & Spectroscopic parallax      
&  2.9 $\pm$ 0.1  & 10--20  \\
Mean of all results      &                              
&  2.8 $\pm$ 0.2  &   10     \\ 
Mean and SD of $A_{\rm V}$   &  &  0.80 $\pm$ 0.29\\
 \hline
NGC~4755  && \\
Sanner et~al. (\cite{San01})     & $\it UBVRI$ MS fitting           
&  2.1 $\pm$ 0.2 & 8--12 \\
Balona \& Koen (\cite{Bal94b})    & $\it uvby\beta$ MS fitting       
&  2.0 $\pm$ 0.2 & -- \\
Sagar \& Cannon (\cite{Sag95})   & $\it UBVRI$ MS fitting           
&  2.1 $\pm$ 0.2 & 10\\
This paper (39 stars)    & Spectroscopic parallax       
&  2.3 $\pm$ 0.1 & 10--15 \\
Mean of all results      &                              
&  2.1 $\pm$ 0.2 & 10 \\ 
Mean and SD of $A_{\rm V}$   &  &  1.15 $\pm$ 0.15\\
 \hline
NGC~6611  && \\
Hillenbrand et~al. (\cite{Hil93}) & Spectroscopic parallax      
& 2.0 $\pm$ 0.2 & 1--3 \\
Belikov et~al. (\cite{Bel99})     & $\it UBV$ MS fitting            
& 2.1 $\pm$ 0.2 & -- \\ 
This paper (24 stars)     & Spectroscopic parallax      
& 1.8 $\pm$ 0.1 & 2--4 \\
Mean of all results       &                             
& 2.0 $\pm$ 0.2 & 2 \\
Mean and SD of $A_{\rm V}$   &  & 2.81 $\pm$ 0.88\\
\hline
\end{tabular}
\end{table}