102. To clean Lamps.—Bronzed lamps should be wiped carefully; if oil be frequently spilled over them, it will cause the bronzing to be rubbed off sooner than it would disappear by wear. Brass lamps are best cleaned with crocus or rotten-stone and sweet oil. Lackered lamps may be washed with soap and water, but should not be touched with acid or very strong ley, else the lacker will soon come off. When lamps are foul inside, wash them with potash and water, rinse them well, set them before the fire, and be sure they are dry before oil is again put into them.
Lamps will have a less disagreeable smell, if, before using, the cottons be dipped in hot vinegar, and dried.
To clean ground-glass shades, wash the insides carefully with weak soap and water, lukewarm, rub them very lightly and dry with a soft cloth.
103. To make economical Wicks for Lamps.—When using a lamp with a flat wick, if you take a piece of clean cotton stocking, it will answer the purpose as well as the cotton wicks which are sold in the shops.
104. Wax Candles.—Should they get dirty and yellow, wet them with a piece of flannel dipped in spirits of wine.
105. Blowing out a Candle.—There is one small fact in domestic economy which is not generally known; but which is useful, as saving time, trouble, and temper. If a candle be blown out holding it above you, the wick will not smoulder down, and may therefore be easily lighted again; but if blown upon downwards, the contrary is the case.