II.—Copper, 32 pounds; zinc, 10 pounds; lead, 1 pound.

III.—Red Brass Free, for Turning.—Copper, 100 pounds; zinc, 50 pounds; lead, 10 pounds; antimony, 44 ounces.

IV.—Best Red Brass for Fine Castings.—Copper, 24 pounds; zinc, 5 pounds; bismuth, 1 ounce.

V.—Red Tombac.—Copper, 10 pounds; zinc, 1 pound.

VI.—Tombac.—Copper, 16 pounds; tin, 1 pound; zinc, 1 pound.

VII.—Brass for Heavy Castings.—Copper, 6 to 7 parts; tin, 1 part; zinc, 1 part.

VIII.—Malleable Brass.—Copper, 70.10 parts; zinc, 29.90 parts.

IX.—Superior Malleable Brass.—Copper, 60 parts; zinc, 40 parts.

X.—Brass.—Copper, 73 parts; zinc, 27 parts.

XI.—Copper, 65 parts; zinc, 35 parts.