“…Proceeding along the lines developed for the branching process in [3], one may, under stronger differentiability and moment conditions on h and G, refine the result of the theorem. For example, under very slightly more than the existence of h'"(0 +), and a fourth moment of G, one can show that *"'(') -Y_1r + y, logí + y2 + 0(t~y}), where y is as before, and yx, y2, y3 are constants, y, depending on h"(0), h'"(0), and p. We will not go into such refinements here.…”