Prepared by R.R. Donnelley Financial -- Consent of Independent Auditor

We consent to incorporation by reference in the Registration Statement on Form S-8 of Olin Corporation, relating to the Olin Corporation Contributing Employee Ownership Plan, of our report dated January 31, 2002, relating to the consolidated balance sheets of Olin Corporation and Subsidiaries as of December 31, 2001 and 2000, and the related consolidated statements of income, shareholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2001, which report appears in the December 31, 2001, annual report on Form 10-K/A of Olin Corporation.