\begin{table}%T3
%\centering
\small
\caption{The parameters of the fit to Eq.~(1) to the network data. 
The first column is the threshold for the magnetic flux density (Mx~cm$^{-2}$). 
By increasing the threshold, we avoid the inter-network intrusions. 
For a comparison to the peak inter-network flux density, see Appendix A. }\label{t3}
\begin{tabular}{c c c c}\hline \hline
cut  &  $a$~(pm)  & $b$ & $c$~(pm) \\ \hline 
0   & 0.73 $\pm$ 0.05 & 0.28 $\pm$ 0.01 & 10.1 $\pm$ 0.1\\%\hline
3   & 0.71 $\pm$ 0.05 & 0.29 $\pm$ 0.01 & 10.1 $\pm$ 0.1\\%\hline
5   & 0.61 $\pm$ 0.04 & 0.31 $\pm$ 0.01 & 10.3 $\pm$ 0.1\\%\hline
10  & 0.22 $\pm$ 0.02 & 0.45 $\pm$ 0.02 & 11.0 $\pm$ 0.1\\%\hline
20  & 0.14 $\pm$ 0.06 & 0.51 $\pm$ 0.06 & 11.3 $\pm$ 0.2\\\hline
\end{tabular} 
\end{table}