[Illustration: FIG. 1278.--Biggar Collegiate Church. South Transept and
Tower.]
4 inches in width, but about 24 feet have been cut off the west end of
the nave so as to form a lobby and staircase to a gallery and a vestry
at the west end. A south-west porch gives access to these places.
Formerly the
[Illustration: FIG. 1279.--Biggar Collegiate Church. View from
South-East.]
chapter house existed on the north side of the chancel, but it was
removed, and a new vestry is now erected in its place.
The principal entrance into the collegiate church was by a round arched
doorway in the south wall of the transept (Fig. 1278), and it is
believed that there was also a door in the west end. A small wheel
staircase in the south-east angle of the north transept leads to the
roof and tower, and also to an organ gallery in the north transept. The
top of the stair turret, as seen in the view, is modern.