No. 9615, in circuit court of appeals for 7th circuit, Baltimore and Ohio Railroud Company, et al., v. Chicago River and Indiana Railroad Company, et al.. Interstate Commerce Commission, intervening plaintiffappellee and Brotherhood of Railroad Trainmen, intervening defendantappellant, appeal from district court for northern district of Illinois, eastern division. Walter J. La Buy, judge, presiding: brief for appellee, Interstate Commerce Commission.