To impart sweetness to the breath, it is recommended to rub the teeth with ashes of burnt mouse-dung and honey: some persons are in the habit of mixing fennel root. To pick the teeth with a vulture' s feather, is productive of a sour breath; but to use a porcupine's quill for that purpose, greatly strengthens the teeth. Ulcers of the tongue and lips are cured by taking a decoction of swallows, boiled in honied wine; and chapped lips are healed by using goose-grease or poultry-grease, wool-grease mixed with nut-galls, white spiders' webs, or the fine cobwebs that are found adhering to the beams of roofs. If the inside of the mouth has been scalded with any hot substance, bitches' milk will afford an immediate cure.