To renovate white Leghorn straw hats that have become slightly soiled, wash in hot soap and water (white curd or castile soap for preference), then in clean water, and carefully brush with a stiff nail-brush to remove dust and dirt. Then dip them in a thin size made from parch ment cuttings or white gelatine. Shake off the excess and hang up to dry. If the hats have become yellow they will probably need bleaching. This is done by exposing them to the vapour of burning sulphur while they are wet. White Leghorn hats may be cleaned as follows also. Well brush them to remove dust, and wash them with salts of lemon (binoxalate of potash), using a hard nail-brush or tooth-brush. Then rinse the hats in cold water to remove any traces of the acid, and stiffen as described above. The hats, if properly cleaned, will not require bleaching. Should any of the salts of lemon stain the operator's clothes, the stains may be removed by immediately sponging with strong liquor ammonia.