Petition for writ of certiorari to the Circuit Court of Appeals for the Second Circuit *641denied.'
Mr. William D. Whitney for petitioner. Solicitor General Jackson, Assistant Attorney General Arnold, and Messrs. Robert L. Stern, Charles A. Horsky, .and Daniel W. Knowlton for Cahill et. al., respondents. Messrs. Ezra Brainerd, Jr. and Alex. M. Bull for the Brotherhood of Locomotive Engineers et al., intervening-respondents.