FLYING BUTTRESS A buttress in the form of a bridge, usually transferring the thrust of the main roof from the clerestory walls to the main or aisle buttresses. FONT The vessel for holding the consecrated water used in baptism. GARGOYLE A projecting spout usually grotesquely carved and used to throw the water from the roof well away from the building. GROIN The line of intersection in vaulted roofs. IMPOST Horizontal mouldings, capping a column or pier, from which the arch springs. JAMB The side of a window or door. KEYSTONE The central stone at the top of an arch. The bosses in vaulted ceilings are frequently called keys. LADY CHAPEL A chapel dedicated to the Blessed Virgin Mary, called "Our Lady." LANTERN A small structure or erection surmounting a dome or tower to admit light. These towers are known as Lantern Towers. LOZENGE A name given in modern times to Norman mouldings which partake of a lozenge formation. LYCH-GATE From the Anglo-Saxon _lich_, a corpse. A small and often picturesque shelter at the entrance to a churchyard. MINSTER The church usually of a monastery or abbey or one to which such has been an appendant. York and Beverley, however, are exceptions to this rule. MISERERE A small bracket on the undersides of the seats of stalls. MOULDING A term generally applied to the contours given to angle projections or hollows of arches, doors, windows, etc. MULLION The dividing bars of stone or wood between the lights of windows, or the openings of screens. MÜNSTER has now lost its simple application. (MONASTERY) NAVE From _navis_, a ship, the main body of a church west of the chancel. NICHE An alcove or recess in a wall for holding a statue or ornament. OGEE A moulding or arch formed of a curve or curves somewhat like the letter S, the curve of contra-flexure, part being concave and part convex. ORDERS In Gothic architecture, the receding mouldings of an arch. PARCLOSE The screen or railings protecting a monument or chantry. PARVISE An open space or porch at the entrance to a church, and often wrongly applied to the room over a church porch. PATEN The small plate or salver used to hold the Consecrated Bread in the celebration of the Eucharist. PENDANT Ornaments which hang or _depend_ from a ceiling or roof. PENTHOUSE A covering projecting over a door, window, etc., as a protection from the weather.