text:  Its summit which was broken and irregular rose full thirty feet from the ground throughout more than double that length and along the wall at about two-thirds of a man's height ran a horizontal black line indicating as did also the numerous marks and bruises upon the whitewashed surface that this ancient piece of masonry enabled the frequenters of the venta to indulge in the favourite _juego de pelota_ or a game at ball to which the Navarrese and the northern Spaniards generally are much addicted and at which most of them excel