Show MEDIATORS TO RUSH HEARING Xew York. July 23 The fedeMl mediators expected to make rapid progress today toward establishing grounds for peaceful arbitration ol the differences between the eastefS railroads and their conductors and trainmen. The satisfactory dispos.il yesterday ot the side issue Involving; the Erie left only the problem of getting get-ting the railroad managers and tho labor leaders to agree on speciflca tlons of the points to come before tho arbitrators. The board today planned to determine de-termine whether arbitration should Include In-clude the eight grievances stated by the railroads against the men |