
    No. 87-1589.
    No. 87-1888.
    Pittsburgh & Lake Erie Railroad Co. v. Railway Labor Executives’ Assn. et al. Pittsburgh & Lake Erie Railroad Co. v. Railway Labor Executives’ Assn. et al.
   C. A. 3d Cir.; and

C. A. 3d Cir. The Solicitor General is invited to file briefs in these cases expressing the views of the United States.  