278. Uitrum: i.e. glass; cold in the first degree and dry in the second degree. If powder of glass together with oil of walnut be put on the head, it will help with every scabby head. If powder of glass together with turpentine be mixed together, it will help with rash on the skin if it be rubbed on it. Item, if flower of the blackberry, powder of glass and oil of roses be mixed together and put on morphea, having first scarified it, it will help with it for sure, according to Platearius. If very fine powder of glass be mixed together with juice of fennel and applied to the eye, it will do away with the cataract of the eye.