1917. The best Lamp-Oil is that which is clear and nearly colorless, like water.
1918. Oil-Grease may be removed from a hearth by covering it immediately with thick hot ashes, or with burning coals.
1919. Candles improve by keeping a few months.
1920. Glass Vessels, and other utensils, may be purified and cleaned by rinsing them out with powdered charcoal.
1921. Family Clocks ought only to be oiled with the very purest oil, purified by a quart of lime-water to a gallon of oil, in which it has been well shaken, and suffered to stand for three or four days, when it may be drawn off.