I

Copper, 65 parts; arsenic, 55 parts.

II

Copper, 64 parts; arsenic, 50 parts.

III

Copper, 10 parts; zinc, 20 parts; nickel, 30 parts.

IV

Nickel, 70 parts; copper, 30 parts; zinc, 20 parts.

V

Nickel, 60 parts; copper, 30 parts; zinc, 30 parts.

VI

Copper, 8 parts; nickel, 4 parts; zinc, 4 parts.

VII

Copper, 10 parts; nickel, 5 parts; zinc, 5 parts.

VIII

Copper, 8 parts; nickel, 3 parts; zinc, 4 parts.

IX

Copper, 50 parts; nickel, 25 parts; zinc, 25 parts.

X

Copper, 55 parts; nickel, 24 parts; zinc, 21 parts.

XI

Copper, 55 parts; nickel, 24 parts; zinc, 16 parts; iron, 2 parts; tin, 3 parts.

IX, X, and XI are suitable for tableware.

XII

Copper, 67 parts, and arsenic, 53 parts.

XIII

Copper, 63 parts, and arsenic, 57 parts.

XII and XIII are bright gray, unaffected by the temperature of boiling water; they are fusible at red heal.