mixed up again; and then it will dissolve in water.
732.
TO CAST BRONZE IN PLASTER.
Take to every 2 cups of plaster 1 of ox-horns burnt, mix them together and make your cast with it.
733.
When you want to take a cast in wax, burn the scum with a candle, and the cast will come out without bubbles.
734.
2 ounces of plaster to a pound of metal;— walnut, which makes