Appeals from D. C. E. D. Pa. Motions of Brock Adams et al. and National Industrial Traffic League for leave to file briefs as amici curiae granted. Probable jurisdiction noted. Cases consolidated and a total of three hours allotted for oral argument. Motion to expedite granted and cases set for oral argument on Wednesday, October 23, 1974. Reported below: 383 F. Supp. 510.