  In this Comment, we explain the reason for the discrepancy between two sets
of tunneling data obtained on Ni- and Zn-doped Bi2212 single crystals
(presented in H. Hancotte et al., Phys. Rev. B 55, R3410 (1997) and A.
Mourachkine, to be published in J. of Superconductivity, cond-mat/9902355).
