Exhibit 12(a)

                               OLIN CORPORATION
               Computation of Ratio of Earnings to Fixed Charges

                                  (Unaudited)

(In millions)



                                                                             Years Ended December 31,                         
                                                    -------------------------------------------------------------------       
                                                      1994           1993            1992          1991          1990         
                                                    --------       --------        --------      --------      --------       
                                                                                                            
 Earnings:                                                                                                                    
 Income (loss) before taxes                          $141           $(150)           $88          $(25)         $116          
 Add (deduct):                                                                                                                
    Income taxes of 50% owned affiliates                4               3              1             3            (4)         
                                                                                                                              
    Equity in (earnings) loss of less than                                                                                    
           50% owned affiliates                         2               4              5             -            (5)         
                                                                                                                              
    Dividends received from less than                                                                                         
           50% owned affiliates                         -               -              -             -             1          
                                                                                                                              
                                                                                                                              
    Interest capitalized, net of amortization           1              (1)            (4)           (1)           (2)         
                                                                                                                              
    Fixed charges as described below                   56              56             58            63            72          
                                                                                                                              
                                                   --------        --------       --------       -------      --------        
          Total                                      $204            $(88)          $148           $40          $178          
                                                   ========        ========       ========       =======      ========        
                                                                                                                              
 Fixed charges:                                                                                                               
    Interest expense                                   38              41             45            50            57          
                                                                                                                              
    Estimated interest factor in rent expense          18              15             13            13            15          
                                                                                                                             
                                                    -------        --------        -------       -------       -------        
           Total                                      $56             $56            $58           $63           $72          
                                                    =======        ========        =======       =======       =======        
                                                                                                                              

 Ratio of earnings to fixed charges (a)               3.6              -             2.6           0.6           2.5          
                                                    =======        ========        =======       =======       =======         


_______________________________________________________________________________
 (a) In the twelve months ended December 31, 1993 and December 31, 1991,
 earnings were inadequate to cover fixed charges by $144 million and $23
 million, respectively. In 1993, the Company recorded an after-tax charge of
 $132 million for personnel reductions, business restructurings involving
 consolidations and re-alignments within divisions, costs at sites of
 discontinued businesses, future environmental liabilities, and other charges.
 In 1991, the Company recorded an after-tax charge of $80 million to cover
 losses on the disposition and write-down of certain businesses and costs of
 personnel reductions.