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To Protect Lead Water-Pipes

head not very accurately known, it is well, by are already laid down, and the power of the Dr. Schwarz, of Breslau, notes a simple means of a leaden nozzle, the orifice of which method of protecting lead pipes from the ac- may be readily increased or diminished, to tion of water, by forming on the inside sur- test the amount of force, so that the ajutage face of the pipes an insoluble sulphide of lead. may be adapted to throw the highest and The operation, which is a very simple one, fullest jet the head is capable of. consists in filling the pipes with a warm and concentrated solution of sulphide of potassium ments for Picture Frames or Other 6234. To Make Composition Ornaor sodium; the solution is left in contact with Purposes. Mix as much whiting as you あ think will be required for present use with | and dried gradually upon a warm stove, or in thinnish glue, to the consistence of putty a Dutch oven, after which they may be tied and having a mould ready, rub it well all over up in bags made of old newspaper. Or, the with sweet oil, and press your composition in leaves may be picked off, pounded in a moroff , pounded in a morit; take it out. and you will have a good im- tar, passed through a hair sieve, and the pow- , and the powpression, which you may set by to dry; or, if wanted, you may, before it gets hard, apply it bottles. to your work with thick glue, and bend it into the form required. ders be preserved separately in well-stoppered 6241. To Remove Clinker from Fire Brick. When the fire bricks have become covered with clinkers which have fused and adhered, they may be cleaned by throwing oyster or clam shells into the fire box when the fire is very hot, and allowing the fire to go out. The clinkers will generally cleave off without the use of much force the next progress of wet and droppings is effectually morning. From 2 quarts to 1/2 peck will be staved. sufficient for most stoves, and the operation