Sec. 57. The positions of the porch and doorway in the wall of the aisle vary. At St Nicholas, Newcastle, where the west tower is engaged within the aisles, there is a porch in the western bay of each aisle. Usually, however, the porch will be found in the second bay of one of the aisles, counting from the west end. Sometimes, especially in larger churches, the porch occurs a bay further east. At Warmington and at Grantham, the two porches of either church are nearly opposite each other, and project approximately from the centre of the walls of the aisles. Where the porch has been pushed eastward in this way, the west end of the aisle seems to have been occupied by one or more chapels. There are indications of this at Warmington; while, in the neighbouring church of Tansor, where the porch is in the usual place, but the aisle has been lengthened somewhat to the west, there was certainly an altar west, as well as east, of the porch. There was at least one chantry chapel west of the south porch at Grantham. The south porch at Ludlow covers the wall of the third bay of the aisle from the west: here there were two chapels in the western part of the aisle. There was another chapel at the west end of the north aisle. It can hardly be proved that the position of porches was actually planned with this use of the aisles in view; but there can be no doubt that advantage was frequently taken of the space thus added to the aisle. CHAPTER V THE AISLED PARISH CHURCH II. TRANSEPTS AND CHANCEL