  Electronic Raman scattering in Tl-2201 has been investigated in order to test
whether the scattering cross-section in high temperature superconductors
depends on the number of CuO2-planes, i.e. sheets or specific details of the
Fermi surface. The experimental data are in qualitative agreement with the
calculations of Devereaux and Einzel based on the dx^2-y^2-wave symmetry of the
order parameter used in the description of the Raman scattering cross section.
