In an earlier paper, classical and weak degeneracy, with the activity parameterrbetween 0 and 1, are investigated. In this paper, intermediate and strong degeneracy, withr>1, are studied. Coefficients for the Joyce–Dixon‐type series are calculated for bosons as well as fermions in one, two, and three dimensions, for either nonrelativistic or ultrarelativistic particles. The theory is applied to the electrons and Cooper pairs in mercury at four temperatures.