To remove grease stains from wall-paper, make a thin paste by mixing powdered starch or flour with ben-zoline (petroleum spirit). In this mixture dip a sponge, and with it make a ring around the stain. While the ring is still wet, thoroughly soak the stained parts with the mixture. Allow the paste to dry, then remove the powder with a clean soft brush. The object of making the ring around the stain is to prevent the oil being carried away from the spots and forming a ring in the paper, as it does by the usual method of treatment.