
    No. 89-1484.
    No. 89-1502.
    No. 89-1503.
    Investment Company Institute v. Securities and Exchange Commission; American Stock Exchange, Inc., et al. v. Chicago Mercantile Exchange et al.; and Philadelphia Stock Exchange, Inc. v. Chicago Mercantile Exchange et al.
   C. A. 7th Cir. Certiorari denied. Reported below: 883 F. 2d 537.  