Exhibit 32

CERTIFICATION PURSUANT TO

EXCHANGE ACT RULE 13a-14(b) AND

18 U.S.C. SECTION 1350

           In connection with the Quarterly Report of Emerson Electric Co. (the "Company") on Form 10-Q for the period ended June 30, 2008, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, D. N. Farr, Chairman of the Board, Chief Executive Officer and President of the Company, certify, to the best of my knowledge, pursuant to Exchange Act Rule 13a-14(b) and 18 U.S.C. Section 1350, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

 /s/ D. N. Farr 

   D. N. Farr

   Chairman of the Board,

   Chief Executive Officer and President

   Emerson Electric Co.

   August 6, 2008

CERTIFICATION PURSUANT TO

EXCHANGE ACT RULE 13a-14(b) AND

18 U.S.C. SECTION 1350

In connection with the Quarterly Report of Emerson Electric Co. (the "Company") on Form 10-Q for the period ended June 30, 2008, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, W. J. Galvin, Senior Executive Vice President and Chief Financial Officer of the Company, certify, to the best of my knowledge, pursuant to Exchange Act Rule 13a-14(b) and 18 U.S.C. Section 1350, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

 /s/ W. J. Galvin 

   W. J. Galvin

   Senior Executive Vice President and

   Chief Financial Officer

   Emerson Electric Co.

   August 6, 2008