chalk lines used to indicate where the pavers are to be cut
are visible here. The rail for this hour line came so close to
the gnomon that the lower web actually goes under the gnomon.
The gap along the
gnomon is about 1 inch wide and is the passage to the
underground drainage system. This space was filled with small
inner dial rails are in place. The pavers and the rails were
all compacted to set them. The grey border pavers are also in
It was now time to
start the outer dial.
for the outer dial was first elevated to level required
for the rails. The rails were surveyed into position and then
the base was elevated for the granite tiles. The tiles were
put in place and the space around them filled with limestone.
templates were used to protect the granite tiles and sand base
from damage when positioning the tiles between the rails. Some
of the pieces were quite heavy and required care when placing.
of granite tiles are shown here on the east side of the dial
plate. Barrie's theodolite is set to survey the hour lines
between 6:00 am and noon. Barrie constructed a special stand
to help place the tripod securely in any of three positions;
east centre, west centre and centre.