326

holes, their height and width half a hole. Two otherslips are fixed for attaching the windlass, three holes longand half a hole wide. The thickness of a slip is calledcamillum, or according to others the dove-tailed box, andis of the dimension of one hole, its height half a hole.The length of the windlass is eight holes and an eighth.The roller nine holes wide. The length of the epitoxisis three quarters of a hole, and its thickness one quarter.The chelo or manucla is three holes long, its length andthickness three quarters of a hole. The length of thebottom of the channel sixteen holes, its width and thick-ness each three quarters of a hole. The small column(columella) with its base near the ground eight holes, thebreadth of the plinth in which the small column is fixedthree quarters of a hole, its thickness three twelfths.The length of the small column up to the tenon twelveholes ; three quarters of a hole w r ide, and five-sixths of ahole thick. The three braces are nine holes long, half ahole wide, and a sixth of a hole thick ; the length of thetenon one hole. The length of the head of the small co-lumn is one hole and three quarters. The width of thefore-piece (antefixa) is three eighths of a hole, its thick-ness one hole. The smaller back column, which in Greekis called avriftatric, is eight holes long, one hole and ahalf wide, and three twelfths of a hole thick. The base(subjectio) is twelve holes, and its breadth and thicknessthe same as that of the smaller column. The cheloniumor pillow as it is called, over the smaller column, twoholes and a half; also two holes and a half high, andone hole and three quarters wide. The mortices (car-chesia) in the axles are two holes and a half; their thick-ness also two holes and a half, and their width one hole