GLUEBALL MASSES IN QCD(3)

We discuss how to extract the spectroscopy of quantum chromodynamics ( QCD) in the pure gauge sector from the Hamiltonian lattice field theor y approach. The recently developed truncated eigenvalue equation metho d is applied to the estimation of the scalar glueball 0(++) and 0(--) masses in the (2+1)-dimensional case. These masses reach the constant values in a scaling region as required by the renormalizability.