  In a recent paper [Int. J. Mod. Phys. B {\bf 14}, 405 (2000)] we discussed
the Bose-Einstein condensation (BEC) in the framework of Tsallis's nonextensive
statistical mechanics. In particular, we studied an ideal gas of bosons in a
confining harmonic potential. In this memoir we generalize our previous
analysis by investigating an ideal Bose gas in a generic power-law external
potential. We derive analytical formulas for the energy of the system, the BEC
transition temperature and the condensed fraction.
