1 EXHIBIT-99.BD VANGUARD WORLD FUND -- VANGUARD U.S. GROWTH FUND INVESTMENT ADVISORY AGREEMENT ADDENDUM EFFECTIVE SEPTEMBER 1, 1998 This Addendum amends Section 7 of the Investment Advisory Agreement dated April 1, 1993 between VANGUARD WORLD FUND...Investment Advisory Agreement • December 23rd, 1998 • Vanguard World Fund Inc
