Eagle-Picher Mining & Smelting Co. No. 460, original, in circuit court of appeals for 8th circuit, Eagle-Picher Mining and Smelting Company and Eagle-Picher Lead Company v. National Labor Relations Board, on petition for rule to show cause, to remand, and for other relief; main and reply briefs for National Labor Relations Board (heretofore filed in support of application for issuance of rule and now submitted in support of motion for judgment).