The following recipe is used for preparing the celebrated stucco whitewash used on the east end of the president's house at Washington:—Take half a bushel of good unslacked lime, slack it with boiling water, covering it during the process to keep in the steam. Strain the liquor through a fine sieve or strainer, and add to it a peck of clean salt, previously dissolved in warm water, three pounds of good rice, ground to a thin paste, and stirred while boiling hot; half a pound of powdered Spanish whiting, and a pound of clean glue, which has been previously dissolved by first soaking it well, and then hanging it over a slow fire in a small kettle, within a large one filled with water. Add five gallons of hot water to the mixture; stir it well, and let it stand a few days, covered from dirt. It should be put on quite hot; for this purpose it can be kept in a kettle on a portable furnace. It is said that about one pint of this mixture will cover a square yard upon the outside of a house, if properly applied. Brushes more or less may be used according to the neatness of the job required. It retains its brilliancy for many years. There is nothing of the kind that will compare with it either for inside or outside walls. Any required tinge can be given to the preparation by the addition of colouring matter.—Mining Journal.