pter, also
containing the _Maitre d'Autel_

F Ambulatory The aisles or colonnade which surround
the choir

G Chapels Literally a small place of worship containing
an altar. In a great church, which
may contain several, they are usually
dedicated to male and female saints

H Nave The main body of a church, extending from
the choir to the principal facade; _i. e._
that part between the outer aisles

I Aisles The lateral passage on either side of the
nave and separated therefrom by piers
or pillars

J Portal Literally, the framework of a doorway

K Abside The domed easterly end of a church

L Sacristy The apartment in which is kept the church
plate and vestments

[Illustration: NO. 2. CROSS SECTION]

A Nave aisle vaulting The arched roof of stone

B Nave vaulting The arched roof of stone

C Flying buttress A supporting outside prop of the thrust
variety. Notably a distinguishing feature
of mediaeval Gothic architecture

D Side aisle The passage which flanks the nave

E Buttress pier The outer support of a flying buttress

F Pinnacle On towers, buttress piers, gables, etc.

G Gargoyle A projecting water-spout carved grotesquely

H Niche A recess in a wall, or surmounting a pier;
primarily to hold a statue

[Illustration: NO. 3. INTERIOR]

A Clerestory The upper range of windows of the nave;
rising above the adjoining portions

B Triforium Literally, a blind window--a range of
openings, or possibly an arcade-effect
only, coming below the clerestory and
above the lower arches of the nave

C Arch (between nave and ai
Joining the piers or pillars which separate
nave from aisles

D Pillars (of nave) Commonly called pillars, columns, and
piers, but more often are literally pillars,