EXHIBIT 4(a)(iv)


     Any Subsequent Indentures with respect to Senior Debt Securities entered
into subsequent to the Subsequent Indenture described in Exhibit 4(a)(iii) will
be substantially the same as the Indenture, dated as of October 1, 1993, between
the Company and The Chase Manhattan Bank (successor by merger to The Chase
Manhattan Bank, N.A.) contained as Exhibit 4(a)(ii) to the Registration
Statement except that the name of any Subsequent Trustee with respect to any
Subsequent Indenture will be inserted and any Subsequent Indenture will be dated
as of a current date.