14. To wash Stone Stairs and Halls.—Wash them first with hot water and a clean flannel, and then wash them over with pipe-clay mixed in water. When dry, rub them, with a coarse flannel.
15. To take Oil and Grease out of Floors and Stone Halls.—Make a strong infusion of potash with boiling water; add to it as much quick-lime as will make it of the consistence of thick cream; let it stand a night, then pour off the clear part, which is to be bottled for use. When wanted, warm a little of it; pour it upon the spots, and after it has been on them for a few minutes, scour it off with warm water and soap, as it is apt to discolor the boards when left too long on them. When put upon stone, it is best to let it remain all night; and if the stain be a bad one, a little powdered hot lime may be put upon it before the infusion is poured on.
16. To clean Marble.—Muriatic acid, either diluted or pure, as occasion may require, proves efficacious. If too strong, it will deprive the marble of its polish, which may be easily restored by the use of a piece of felt, with some powder of putty or tripoli, with either, making use of water.
17. To clean Marble. Another way.—Mix ¼ lb. of soft soap with the same of pounded whiting, 1 oz. of soda, and a piece of stone-blue the size of a walnut; boil these together for ¼ of an hour; whilst hot, rub it over the marble with a piece of flannel, and leave it on for 24 hours; then wash it off with clean water, and polish the marble with a piece of coarse flannel, or what is better, a piece of an old hat.