Mix, bottle, and label No. 1.
| Solution of chlorinated soda 2/3 | pint. |
| Water1 | pint. |
Mix, bottle, and label No. 2.
To erase ink dip the end of a penholder or pencil in No. 1 and apply to the writing, and do the same with No. 2. Let remain a moment and blot off with clean blotting-paper. If the characters are not erased repeat as before.
Cements and Glue.
Armenian Glue.
The jewellers of Turkey, who are mostly Armenians, have a singular method of ornamenting watch cases, etc., with diamonds and other precious stones by simply gluing or cementing them on. The stone is set in gold or silver and the lower part of the metal made flat, or to correspond to that part to which it is to be fixed. It is then warmed gently and the glue applied, which is so very strong that the parts thus cemented never separate. For this glue, which will firmly unite bits of glass and even polished steel, and which may of course be applied to a vast variety of useful purposes, large number of formulas have been published. The following is the original recipe. Dissolve 5 or 6 bits of gum mastic, each the size of a large pea, in as much alcohol as will suffice to render them liquid; in another vessel dissolve as much isinglass, previously softened a little in water (though none of the water must be used), in good brandy or rum as will make a two-ounce vial of very strong glue, adding two small bits of galbanum or ammoniacum, which must be rubbed or ground until they are dissolved. Then mix the whole with a sufficient heat. Keep the glue in a vial closely corked, and when it is to be used set the vial in boiling water. To avoid cracking the vial by exposure to such sudden heat use a thin green glass vial and hold it in the steam for a few seconds before immersing it in the hot water.—Workshop Receipts.
Glutina Cement.
FOR GLASS, CHINA, WOOD, LEATHER, ETC.
| Gelatine (Cooper’s or Cox’s)3 | ounces. |
| Acetic acid2 | ounces. |
| Carbolic acid5 | grains. |
| Oil of cloves6 | minims. |
| Water enough to make1 | pint. |