Hence, as might be expected, the connection of the style of architecture adopted in Scotland with that of England is at this period very intimate, almost the only difference observable being that the first pointed work in Scotland is rather later than that in England, and that the Norman and transition features are more slowly rejected. We find the same desire in both countries to render their principal ecclesiastical structures complete and varied. We have no cathedrals in Scotland which can vie with Salisbury, Lincoln, or York in size and magnificence, or in the possession of double transepts. The Scottish cathedrals and abbeys, however, were, for the most part, complete in all departments, having choir and nave with side aisles (and, in the case of Elgin Cathedral, with double aisles to the nave); a presbytery of one or two bays without aisles, but with large windows on three sides; well-marked transepts with eastern aisle; generally a large central tower over the crossing, and frequently two western and other towers. Great central towers over the crossing of the first pointed period formerly existed at St. Andrews and Elgin Cathedrals, and at Dundrennan, Arbroath, Holyrood, Kilwinning, and Dunfermline Abbeys, but of these not a vestige now remains. The only central towers which now survive are those of Glasgow Cathedral and Pluscardine Abbey, which are carried on the arches of the crossing. There is also a central tower at Culross Abbey which rises with solid walls from the foundation. The central towers of Kirkwall and Dornoch Cathedrals have been rebuilt. Of the other towers which once adorned our churches there still remain the two noble western towers of Elgin Cathedral, and one of the western towers of Holyrood Abbey. At both of these edifices the towers were carried up with solid walls from the foundation. In other examples, of which, however, only fragments survive, such as Arbroath and Kilwinning Abbeys, the towers opened with arches into the central and side aisles, so that the space occupied by the towers was included in the church. At Kilwinning the arch in the towers next the nave appears to have been carried to a great height, so as to form a kind of western transept. At Inchmahome Priory there are remains of one western tower, which was included in the nave. At Cambuskenneth Abbey a large detached tower exists close to the west end, and at Lindores Abbey there are remains of one western tower.