<PAGE>                                                            Exhibit 24

POWER OF ATTORNEY 

The undersigned members of the Board of Directors and Executive Officers of

Emerson Electric Co., a Missouri corporation with principal offices at 8000

West Florissant Avenue, St. Louis, Missouri 63136, hereby appoint W. J.

Galvin as their Attorney-in-Fact for the purpose of signing Emerson Electric

Co.'s Securities and Exchange Commission Form 10-K (and any and all

Amendments thereto) for the fiscal year ended September 30, 2002.

Dated: October 1, 2002

       Signature                                            Title

/s/ C. F. Knight                                    Chairman of the Board
                                                    and Director
    C. F. Knight

/s/ D. N. Farr                                      Chief Executive Officer
                                                    and Director
    D. N. Farr

/s/ W. J. Galvin                                    Executive Vice President
                                                    and Chief Financial
    W. J. Galvin                                    Officer and Director

/s/ J. G. Berges                                    Director
                             
    J. G. Berges

/s/ L. L. Browning, Jr.                             Director
                             
    L. L. Browning, Jr.

/s/ A. A. Busch III                                 Director
                             
    A. A. Busch III

<PAGE>

/s/ D. C. Farrell                                   Director
                             
    D. C. Farrell

/s/ C. Fernandez G.                                 Director

    C. Fernandez G.

/s/ A. F. Golden                                    Director

    A. F. Golden

/s/ R. B. Horton                                    Director

    R. B. Horton

/s/ G. A. Lodge                                     Director

    G. A. Lodge

/s/ V. R. Loucks, Jr.                               Director

    V. R. Loucks, Jr.

/s/ R. B. Loynd                                     Director

    R. B. Loynd

/s/ J. B. Menzer                                    Director

    J. B. Menzer

/s/ C. A. Peters                                    Director

    C. A. Peters

<PAGE>

/s/ J. W. Prueher                                   Director

    J. W. Prueher

/s/ R. L. Ridgway                                   Director

    R. L. Ridgway

/s/ W. M. Van Cleve                                 Director

    W. M. Van Cleve

/s/ E. E. Whitacre, Jr.                             Director

    E. E. Whitacre, Jr.