998. Oil Lighting
Whenever oil, whether animal, vegetable, or mineral, is used for the purpose of artificial light, it should be kept free from all exposure to atmospheric air; as it is apt to absorb considerable quantities of oxygen. If animal oil is very coarse or tenacious, a very small quantity of oil of turpentine may be added.
999. Improving Candles
Candles improve by keeping a few months. If wax candles become discoloured or soiled, they may be restored by rubbing them over with a clean flannel slightly dipped in spirits of wine.
1000. Lighting Candles
In lighting candles always hold the match to the side of the wick, and not over the top of it, as is generally done.
1001. Night Lights