Tables II, III, and IV show the composition of bullion, slimes and refined lead. Tables V, VI, VII, and VIII give the results obtained experimentally in the laboratory on lots of a few pounds up to a few hundred pounds. The results in Tables VI and VII were given me by the companies for which the experiments were made. TABLE I.—ANALYSES OF DROSS For analyses of the lead from which this dross was taken, see Table II ───┬──────┬─────────┬─────────┬─────────┬─────────┬───── │NO. IN│ │ │ │ │ NO.│TABLE │ CU. │ AS. │ SB. │ FE. │ZN. │ II. │PER CENT.│PER CENT.│PER CENT.│PER CENT.│ ───┼──────┼─────────┼─────────┼─────────┼─────────┼───── 1 │ 2 │ 0.0005 │ 0.0003 │ 0.0016 │ 0.0016 │none 2 │ 3 │ 0.0010 │ 0.0008 │ 0.0107 │ 0.0011 │ “ ───┴──────┴─────────┴─────────┴─────────┴─────────┴───── TABLE II.—ANALYSES OF BULLION ───┬─────────┬─────────┬─────────┬─────────┬──────── NO.│ FE. │ CU. │ SB. │ SN. │ AS. │PER CENT.│PER CENT.│PER CENT.│PER CENT.│PER CENT. ───┼─────────┼─────────┼─────────┼─────────┼───────── 1 │ 0.0075 │ 0.1700 │ 0.5400 │ 0.0118 │ 0.1460 2 │ 0.0115 │ 0.1500 │ 0.6100 │ 0.0158 │ 0.0960 3 │ 0.0070 │ 0.1600 │ 0.4000 │ 0.0474 │ 0.1330 4 │ 0.0165 │ 0.1400 │ 0.7000 │ 0.0236 │ 0.3120 5 │ 0.0120 │ 0.1400 │ 0.8700 │ 0.0432 │ 0.2260 6 │ 0.0055 │ 0.1300 │ 0.7300 │ 0.0316 │ 0.1030 7 │ 0.0380 │ 0.3600 │ 0.4030 │ │ tr. ───┴─────────┴─────────┴─────────┴─────────┴───────── ───┬─────────┬─────────┬─────────┬─────────┬───────── NO.│ AG. │ AU. │ PB. │ AG. │ AU. │PER CENT.│PER CENT.│PER CENT.│OZ. P. T.│OZ. P. T. ───┼─────────┼─────────┼─────────┼─────────┼───────── 1 │ 1.0962 │ 0.0085 │ 98.0200 │ 319.7 │ 2.49 2 │ 1.2014 │ 0.0086 │ 97.9068 │ 350.4 │ 2.52 3 │ 1.0738 │ 0.0123 │ 98.1665 │ 313.2 │ 3.6 4 │ 0.8914 │ 0.0151 │ 97.9014 │ 260.0 │ 4.42 5 │ 0.6082 │ 0.0124 │ 98.0882 │ 177.4 │ 3.63 6 │ 0.6600 │ 0.0106 │ 98.2693 │ 192.5 │ 3.10 7 │ 0.7230 │ 0.0180 │ 98.4580 │ 210.9 │ 5.25 ───┴─────────┴─────────┴─────────┴──────────────────── TABLE III.—ANALYSES OF SLIMES ─────────┬─────────┬─────────┬─────────┬─────────┬─────┬────┬───── FE. │ CU. │ SB. │ SN. │ AS. │ PB. │ZN. │BI. PER CENT.│PER CENT.│PER CENT.│PER CENT.│PER CENT.│ │ │ ─────────┼─────────┼─────────┼─────────┼─────────┼─────┼────┼───── 1.27 │ 8.83 │ 27.10 │ 12.42 │ 28.15 │17.05│none│none 1.12 │ 22.36 │ 21.16 │ 5.40 │ 23.05 │10.62│ “ │ “ ─────────┴─────────┴─────────┴─────────┴─────────┴─────┴────┴───── TABLE IV.—ANALYSES OF REFINED LEAD