Put white and light-colored silks and pongees through strong, tepid white soapsuds, then through a second weaker suds, rinse, press out the water with the hands, shake out all wrinkles, spread on a clean sheet, and roll tight. Cover with a cheesecloth and iron while still damp with a not too hot iron. No portion of silk should be allowed to dry before ironing. If this occurs do not sprinkle, but dampen by rolling in a wet cloth. In laundering pure white silk, slightly blue the rinsing water. A slight firmness can be imparted to any silk by the addition of one teaspoon of gum arabic to each pint of the rinsing water. Silk hose are laundered just as other silk, except that instead of being rolled they must be dried as quickly as possible and ironed under a damp cloth.