American Metal Polishing Paste.—
| Bohemian Tripoli powder | 1 pound. |
| Spanish whiting | 1 " |
| Commercial red oxide of iron | ½ " |
| Common petrolin-burning oil | 1 ounce. |
| Glycerine | q. s. |
| Water | q. s. |
| Oil of citronella | ½ ounce. |
Thoroughly mix the powders, then add the petrolin, etc.—Mag. Pharmacy.
Cement for Porcelain Letters.—
| Solution sodium silicate | 30 parts. |
| Slaked lime | 45 " |
Mix, and add:
| Litharge | 30 parts. |
| Glycerine | quantities sufficient. |
Make a paste, and use immediately.