7. Books with broken corners must be rebound.
8. Recase books which have sewing intact and covers in good condition, if they will be used comparatively seldom.
9. Recover books which have worn covers but firm sewing.
MENDING MATERIALS
Adhesives
Paste. Home-made pastes are cheapest. While there are various recipes for paste, either of the following will give satisfaction:
| (1) | |
| Wheat flour, | 8 oz. |
| Powdered alum, | 1/4 oz. |
| Glycerine, | 1-1/2 oz. |
| Oil wintergreen, | 1 dram. |
| Water, | 1-1/2 pts. |
Dissolve the alum in water and mix gradually with the flour into a smooth, thin paste; cook in a double boiler until smooth and clear; take from the fire and add the glycerine and oil of wintergreen. This quantity will make about one quart. If after standing a day a watery fluid collects, stir it into the paste. Keep this paste covered.
| (2) | |
| 1/4 | pound of flour (1 cup). |
| 1 | teaspoonful of alum, dissolved. |
| 1 | generous fourth teaspoonful of oil of clove. |
| 4 | cups of boiling water. |