easurements that the contractors excavated and
removed to a point 100 yards from the ruin 570 cubic yards of
debris, 271 cubic yards of which were removed from the interior and
299 cubic yards from the exterior walls of the building, within an
area of 10 feet of said walls.

I also find the amount of underpinning done by the contractors to be
919 cubic feet, and the amount of filling in openings to be 1,161
cubic feet. The underpinning is done with hard-burned brick laid in
good cement mortar extending to a depth of 12 inches below the
original ground level. The face of the brickwork is set back from 1
to 2 inches from the face of the wall and plastered with a coat of
good cement mortar, making it flush with the outer wall.

In filling in cavities more than 500 lineal feet of 2 by 4 inch
squared lumber was used to replace broken-out lintels and laid side
by side across nearly the whole thickness of the walls, with not
more than 1 inch space between the boards. They occupy the same
horizontal planes as the original lintels, and the walls are trimmed
to afford solid resting places for them. The openings above the
lintels have been filled in the same manner as the underpinning,
with hard-burned brick set back 1 inch from the wall surfaces and
plastered with a coating of cement mortar, bringing it out flush
with the original wall.

I further find that the contractors have placed one wooden brace and
two iron braces as designated in the specifications. The wooden
brace is constructed of two pieces of good, clear, squared lumber 6
by 8 inches in cross section, well bolted together, secured by
plates of boiler iron three-eighths of an inch thick and 14 by 18
inches square. The specifications provide for this brace to run from
the south side of the south wall through the center room with a
plate on each side of the south wall and one on each side of the
wall on the north side of the center room. The contractors have
deviated from these requirements in having extended the said brace
through the entire length of the building and placed the plates that
were specified for the north wall of the center room on the
respective sides of the extreme north wall of the building. While
this deviation adds nothing to the security of the south wall, it is
doubtless as effective as it would have been had it been placed as
contemplated in the plan. It may in some degre