  We investigate the finite temperature behavior of the meson sector of an
effective Lagrangian which describes nuclear matter. A method is developed for
evaluating the logarithmic terms in the effective potential which involves
expansion and resummation; the result is written in terms of the exponential
integral. In the absence of explicit chiral symmetry breaking, a phase
transition restores the symmetry at a temperature of 190 MeV; when the pion has
a mass the transition is smooth. At a much higher temperature a first order
phase transition restores scale symmetry.
