
    No. 86-327.
    Mullins Coal Co., Inc. of Virginia, et al. v. Director, Office of Workers’ Compensation Programs, United States Department of Labor, et al.
   C. A. 4th Cir. Motion of National Coal Association for leave to file a brief as amicus curiae granted. Motion of respondent Luke R. Ray for leave to proceed informa pauperis granted. Certiorari granted.  