Paper, 92d Congress. 55. Subcommittee No. 3 hearings on S. 754, to authorize disposal of silicon carbide from national stockpile and supplemental stockpile, S. 764, to authorize disposal of lead from national stockpile and supplemental stockpile, S. 3086, to authorize disposal of nickel from national stockpile, and S. 773, to authorize disposal of metallurgical grade chromite from national stock-pile and supplemental stockpile.