WASHINGTON, D.C. 20549

                                   FORM 8-K

                                CURRENT REPORT

                    PURSUANT TO SECTION 13 OR 15(d) OF THE
                        SECURITIES EXCHANGE ACT OF 1934

       Date of Report (Date of earliest event reported): October 1, 2001

                               OLIN CORPORATION

            (Exact name of registrant as specified in its charter)

         Virginia                       1-1070                     13-1872319
(State or Other Jurisdiction    (Commission File Number)         (IRS Employer
     of Incorporation)                                       Identification No.)

          P.O. Box 4500, 501 Merritt 7,                      06856-4500
              Norwalk, Connecticut                           (Zip Code)
     (Address of principal executive offices)

                                (203) 750-3000
             (Registrant's telephone number, including area code)

                                Not Applicable
         (Former name or former address, if changed since last report)

Item 7.    Exhibits.

     Exhibit No.                        Exhibit
     -----------                        -------

        99.1             Press Release, dated October 1, 2001.

Item 9.    Regulation FD Disclosure.

      In accordance with General Instruction B.2. of Form 8-K, the following
information shall not be deemed to be "filed" for purposes of Section 18 of the
Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated
by reference in any filing under the Securities Act of 1933, as amended.  Olin
disclaims any intention or obligation to update or revise this information.

      Attached as Exhibit 99.1, and incorporated herein by reference, is a copy
of the registrant's press release dated October 1, 2001, announcing it is
lowering its third quarter diluted earnings per share projection (before the
effects of its previously announced restructuring charge), from the 5-cents per
share profit range to the 5-cents per share loss range due to continuing
softness in the U.S. economy and announcing a conference call to discuss the
above to be held at 9:00 a.m. Eastern time, October 2.


     Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                        OLIN CORPORATION

                                        By:         /s/ Anthony W. Ruggiero
                                             Name:  Anthony W. Ruggiero
                                             Title: Executive Vice President and
                                                    Chief Financial Officer

Date: October 1, 2001

                                 EXHIBIT INDEX

   Exhibit No.                         Exhibit
   -----------                         -------

      99.1            Press Release, dated October 1, 2001.