of the quadrangular figure of the oldest and smallest
Irish churches and oratories. But its form is very irregular, partly in
consequence of the extremely sloping nature of the ground on which it is
built, and partly perhaps to accommodate it in position to three large
and immovable masses of trap that lie on either side of it, and one of
which masses is incorporated into its south-west angle. It is thus
deeper on its north than on its south side; and much deeper at its
eastern than at its western end. Further, its remaining eastern gable is
set at an oblique angle to the side walls, while both the side walls
themselves seem slightly curved or bent. Hence it happens, that whilst
externally the total length of the north side of the building is 19 feet
and a half, the total length of its south side is 21 feet and a half, or
2 feet more. Internally, also, it gradually becomes narrower towards its
western extremity; so that, whilst the breadth of the interior of the
building is about 6 feet 3 inches at its eastern end, it is only 4 feet
and 9 inches at its western end. Some of these peculiarities are shown
in the accompanying ground-plan drawn by Mr. Brash (see woodcut, Fig.
4), in which the line A B represents the whole breadth of the building;
A the north, and B the south wall of it. Unfortunately, as far as can be
gathered amid the accumulated debris at the western part of the
building, the gable at that end is almost destroyed, with the exception
of the stones at its base; but, judging from the height of the vaulted
roof, this gable probably did not measure externally above 8 feet, while
the depth of the eastern gable, which is comparatively entire, is
between 14 and 15 feet. The interior of the building has been
originally, along its central line, about 16 feet in length; it is
nearly 8 feet in height from the middle of the vaulted roof to the
present floor; and the interior has an average breadth of about 5 feet.
Internally the side walls are 5 feet in height from the ground to the
spring of the arch or vault.

Three feet from the ground there is interiorly, in the south wall, a
small four-sided recess,[48] 1 foot in breadth, and 15 inches in height
and depth. (See C in ground plan, Fig. 4; and also Fig. 8.) In the same
south-side wall, near the western gable, is an opening extending from
the floor to the spring of the roof. It has apparently been the original
door of the building; but as it is now built up by a layer