\begin{table}%t2 \caption{\label{t:corrrmsg}Pearson's correlation coefficients, degrees of freedom and significance for relations with iron spread in our GC sample.} \small%\centerline { \begin{tabular}{llll} \hline \hline Parameter & $r_{\rm p}$ &d.o.f.&signif. \\ \hline $M_V$ &$-$0.49& 17& 95--98\% \\ $R_{\rm perig.}$ & +0.47& 15& 90--95\% \\ $\log T_{\rm eff}^{\rm max}$ (HB) & +0.38& 17& 90\% \\ $x$(MF) & +0.60& 11& 95--98\% \\ rel.Age &$-$0.49& 17& 95--98\% \\ $\sigma$(h) & +0.59& 16& 99\% \\ P & +0.65& 17& $>$99\% \\ I &$-$0.67& 17& $>$99\% \\ E & +0.52& 17& $\sim$98\% \\ $[$(Mg+Al+Si)/Fe$]$ &$-$0.48& 16& 95--98\% \\ $[\langle \rm Si,Ca\rangle$/Fe] &$-$0.70& 17& $>$99\% \\ $[$Ca/Fe$]$ &$-$0.78& 17& $>$99\% \\ $[<$$\alpha$$>]$/Fe] &$-$0.72& 17& $>$99\% \\ $[$Mg/Fe$]_{\rm max}$ &$-$0.52& 17& 98\% \\ $[$Mg/Fe$]_{\rm min}$ &$-$0.56& 17& 98--99\% \\ $[$Si/Fe$]_{\rm min}$ &$-$0.44& 17& 90--95\% \\ \hline \end{tabular}} \smallskip -- $M_V$ from the on-line version of the Harris (\cite{Harris1996}) catalogue.\\ -- Peri-galactic distance $R_{\rm perig.}$ in kpc from Dinescu et~al. (\cite{Dinescu1999}) or Casetti-Dinescu et~al. (\cite{Casetti2007}).\\ -- Maximum temperature along the HB $\log T_{\rm eff}^{\rm max}$(HB) from Recio Blanco et~al. (2006) or derived in Carretta et~al. (\cite{Carretta2009c}).\\ -- Exponent $x$ of the power-law relation for global mass function from Djorgovski et~al. (\cite{Djorgovski1993}). \\ -- Relative age parameter from De Angeli et~al. (\cite{Angeli2005}) and Rosenberg et~al. (\cite{Rosenberg1999}).\\ -- Velocity dispersion at the half-mass radius $\sigma(h)$ from Gnedin et~al. (\cite{Gnedin2002}).\\ -- Fractions of primordial~$P$, intermediate~$I$ and extreme~$E$ components from Carretta et~al. (\cite{Carretta2009a}; Paper VII).\\ -- The other abundance ratios are derived from UVES spectra (Carretta et~al. \cite{Carretta2009b}; Paper VIII); here [$\alpha$/Fe] is the average of [Mg/Fe]$_{\rm max}$, [Si/Fe]$_{\rm min}$ and [Ca/Fe]. \end{table}