In the paper of the same title (see ibid., vol.24, p.3611, (1991)), the behaviour of the free energy was investigated for an exactly soluble condensed matter system that contained a topological soliton. When lambda , the size of the soliton in units of the coherence length, was small compared with unity, the free energy was shown to behave as a nonanalytic function of lambda . The authors show that a simple approximation to the exact free energy exists which is able to reproduce the leading small lambda results and, more generally, approximate the exact free energy, with reasonable accuracy, over a wide range of lambda . Thus at zero temperature, for example, the errors the approximate free energy makes on the value of lambda and the free energy at its minimum are 18% and 8.3.% respectively.