TRANSITIONAL PERIOD.

a roll, or a pear-shaped moulding, at the angle of eachorder of the arch: they frequently have no Hood-moulding. All the usual rich ornaments of the NormanStyle disappear, hut the Chevron occurs occasionally,and another ornamental moulding somewhat resemblingit, but peculiar to this Period, is frequently seen.

The S t i i. i n & - c o u r s iA do not usually carry any orna-ment, and have commonly a simple section peculiar tothe Period.

The Vaulting or Roof-shaft has usually a pear-shaped section.

The Triforium-arcade has usually Circular Arches ,but in the later examples the two forms of arch arefrequently intermixed. The Shafts are of a much lightercharacter, and carry arches of simple mouldings.

The Pointed Arch , if found anywhere in the arches ofDecoration , is generally to be seen in the Clere-story,the highest part of the building, and consequently thelatest in point of construction.

Plain pointed quadripartite Vaulting not unfrequentlycovers the side-aisles, and sometimes the centre-aisle.

The contrast presented by the discriminate use of thetwo forms of arch before mentioned, is sometimes strik-ingly exhibited in the side-aisles, where it is by nomeans uncommon to find a large plain circular windowplaced immediately under an acutely pointed wall rib,forming part of the contemporaneous pointed Vaultingof the side-aisle.

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