HOWDEN Collegiate Church Choir. ELY Cathedral Church Lantern. ELY Cathedral Church Choir. ELY Cathedral Church Crauden's Chapel. ELY Cathedral Church Trinity Chapel. HINGHAM St. Andrew's Church Nave. HECKINGTON St. Andrew's Church Chancel, Transepts, Nave. HAWTON All Saints' Church Chancel. EWERBY St. Andrew's Church Chancel, Nave. SLEAFORD St. Giles' Church Nave. CHESTER Cathedral Church South Transept. COVENTRY St. John's Hospital Chapel. CARLISLE Cathedral Church Choir (part). NEWARK St. Mary's Church South Aisle. BEVERLEY St. Mary's Church North Aisle of Choir. SELBY Abbey Church Choir (part). WALSINGHAM Abbey Church Choir. CHESTER Cathedral Church South Transept. NANTWICH St. Mary's Church Chancel. MELROSE Abbey Church Nave, Transept. BOLTON Abbey Church Choir. BOSTON St. Botolph's Church Nave. LICHFIELD Cathedral Church Choir. WELLS Cathedral Church Choir, Lady Chapel. BURY ST. EDMUND'S Abbey Gateway. HULL Holy Trinity Church Chancel. CHAPTER X. RECTILINEAR PERIOD. PRINCIPAL CHARACTERISTIC. THE PREVALENCE OF STRAIGHT LINES, BOTH HORIZONTAL AND VERTICAL, IN THE TRACERY OF WINDOWS, IN PANELS AND ARCADES. _Exterior Compartment._ The WALLS and BUTTRESSES of this Period present great contrasts, being generally perfectly plain, but occasionally, in the richer buildings, completely covered with rectangular panelling. The BASE-COURSE is often deep, rises in several stages, and contains a few large bold mouldings. The mullions of the WINDOWS almost invariably rise vertically through the Tracery, and are often crossed at right angles by other straight lines, as well in the lower part of the Window as in the Tracery itself. These _Transoms_ in some of the larger East and West Windows, occurring at equal intervals, divide the entire design into a series of rectangular compartments, and give to the whole the appearance of a huge gridiron. They are sometimes ornamented with a small battlemented moulding. The CLERE-STORY WINDOWS, as well as the side windows, where the aisle walls are low, are often square-headed. The CORNICE generally carries a large shallow hollow, filled at intervals with a square flat leaf, and grotesque sculptures. _Gurgoyles_, formed usually of the head and shoulders of some monster, and projecting from the cornice, for the purpose of carrying the water from the gutters clear of the walls, which occur in the former Period, are now universal.