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$\Upsilon(1s)\to\gamma(\eta',\eta, f_2(1270))$ are studied by an approach inwhich the glueball components of these mesons play dominant role. Strongdependence on quark mass has been found in the decays $(J/\psi,\Upsilon(1s))\to\gamma(\eta',\eta)$. Very small decay rates of$\Upsilon(1s)\to\gamma(\eta',\eta)$ are predicted. d-wave dominance has beenfound in $\Upsilon(1s)\to\gamma f_2(1270)$, which leads to larger$B(\Upsilon(1s)\to\gamma f_2(1270)).$

$\Upsilon(1S)-->\gamma(\eta',\eta,f_2(1270))$ decays