  The thermal evolution of the energies and free energies of a set of spherical
and near-spherical nuclei spanning the whole periodic table are calculated in
the subtracted finite-temperature Thomas- Fermi framework with the zero-range
Skyrme-type KDE0 and the finite-range modified Seyler-Blanchard interaction.
The calculated energies are subjected to a global fit in the spirit of the
liquid-drop model. The extracted parameters in this model reflect the
temperature dependence of the volume symmetry and surface symmetry coefficients
of finite nuclei, in addition to that of the volume and surface energy
coefficients. The temperature dependence of the surface symmetry energy is
found to be very substantial whereas that of the volume symmetry energy turns
out to be comparatively mild.
