
    No. 75-1521.
    No. 75-1609.
    No. 75-1858.
    Dow Chemical Co. v. Local 14055, United Steelworkers of America, AFL-CIO, et al.; Chamber of Commerce of the United States v. Local 14055, United Steelworkers of America, AFL-CIO, et al.; National Labor Relations Board v. Local 14055, United Steelworkers of America, AFL-CIO, et al.
   C. A. D. C. Cir. Certiorari granted, judgment vacated, and cases remanded with directions to remand to the National Labor Relations Board for reconsideration in light of intervening circumstances.  