Аннотация:THE CHANCE DISCOVERY of a waterlogged wooden beam during the cutting of a drainage ditch led to the excavation of the timber framework of a medieval water-mill. Almost half the water-wheel survived in situ. A little 14th-century pottery was found in the wheel-pit; its structure was extremely similar to that of the approximately contemporary period I mill at Chingley.1 The mill at Batsford was probably used for grinding grain; no trace of the mill building itself was found.