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):  April 5, 2001

                               OLIN CORPORATION

            (Exact name of registrant as specified in its charter)

          Virginia                         1-1070                         13-1872319
(State or Other Jurisdiction of    (Commission File Number)     (IRS Employer 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                          Announcement

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 an
announcement of a conference call to review first quarter results which will be
held on Friday, April 27, 2001 at 9:00 AM.


    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/ Johnnie M. Jackson, Jr.
                                     Name:  Johnnie M. Jackson, Jr.
                                     Title: Vice President, General
                                            Counsel and Secretary

Date:  April 5, 2001

                                 EXHIBIT INDEX

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

     99.1                Announcement