_Ball-Flower Moulding._--Ornament resembling a ball enclosed in a globular flower of three petals. _Baluster._--A small turned wooden pillar, generally circular. _Bay._--The compartment of a church formed by the buttresses or pilasters on the walls, the main arches or pillars, the ribs of the vaulting, or other features which separate the building into corresponding portions. _Campanile._--A bell tower. _Cavetto._--A concave moulding of a quarter of a circle, used in classical and other styles of architecture. _Chamfer._--To cut off angles. _Clerestory or Clear-Story._--An upper storey, or row of windows in a Gothic church; so called to distinguish it from the blind-storey, or triforium. _Corbel._--A projecting stone or piece of timber supporting a weight. _Corbel-Table._--A row of corbels. _Credence._--A small table or shelf near the altar on which the bread and wine were placed before they were consecrated. _Crocket._--A bunch of projecting flowers or foliage decorating pinnacles, arches, etc. _Cusps._--The projecting points in Gothic tracery, or inside an arch; sometimes worked at the ends with leaves, flowers, or heads. _Dog-Tooth Moulding._--Ornaments usually consisting of four plain leaves, arranged so as to form a point. _Dripstone._--Projecting tablet or moulding over heads of archways, windows, doorways, etc. _Fan-Vaulting._--Vaulting in which the ribs rise with the same curve and diverge equally in every direction from the springing of the vault. _Finial._--A foliated ornament ending a pinnacle or gable, etc. _Flamboyant._--A name given to Late Decorated style of architecture from the flame-like wavings of its tracery. _Gargoyle._--A projecting spout, often carved in a grotesque form. _Groin._--The angle formed by the intersection of vaults. _Herring-Bone Work._--Masonry in which the stones are placed aslant, forming a fish-bone pattern. _Jamb._--The side of a window or door, etc. _Miserere._--A projecting bracket on the under side of the seats of stalls, which were made to turn up; the monks were allowed to lean on these brackets during the long services, which were performed standing. _Mullion._--Perpendicular bar between the lights of windows in Gothic architecture. _Nail-headed Moulding._--Moulding in imitation of ornamental nail-heads. _Newell._--The column round which a spiral staircase winds. _Ogee._--A moulding partly concave and partly convex, forming a round and a hollow. Term also applied to an arch formed of contrasted curves. _Orders._--The recesses of a divided arch. _Parvise._--A small room over the porch. _Pilaster._--A pillar, sometimes disengaged but generally attached to a wall.