  Data on $J/\Psi \to \gamma (\rho\rho)$ demand a broad $0^-$ $\rho\rho$
signal, attributable to a glueball with a mass of 1750--2100 MeV. Decays of
this broad state to $\rho\rho$, $\omega\omega$, $K^*\bar K^*$ and $\phi \phi$
channels agree well with flavour blindness. The narrow $\iota(1440)$ may be
attributed to mixing between the glueball and the $s\bar s$ radial excitation.
The latter is pushed down in mass by repulsion between the two levels. We
conjecture that the $2^+$ glueball may likewise be broad. Mixing between it and
the $2^3P_2~q\bar q$ and $s\bar s$ radial excitation can explain the appearance
of $f_2(1565)$ and a $2^+$ $\Theta (1710)$ at masses lower than anticipated.
Mixing with higher $q\bar q$ states can explain the $2^+$ resonance at 1920 MeV
and also $\phi \phi$ signals observed by Etkin et al. and by the JETSET
collaboration.
