7.7
as shown in
-front edges pounded off the Drawings 25 and. 95 A.
4 inches
square,
or pebbles.
At a distance of 18 inches back from the face, full depth great nicks will be out in each stone to form diagonal holes these to be closely fit. tid full depth with graniter dowelsplet in flush and grouted with liquid Port- land cement. The doves to be laid in cement mortar 3 inches inwards proud ther four sides and the rest of the bed grouted.
the work below high of water line will be pointed in Roman and
above it in Portland cement both in the
The whole
back and front of the wall. Backing. A hydraulic line concrites backing of the dimensions
in the Drawings will be carried use at the same time
shewn
the
masonry,
malousy
and well pa
med in 12
this
posed.
mich layers. Of the merits
of pro- Chinese bydrantic line convite falter particulars submitted further on. Its proportions with be one of hy draulic lime, one of clay and there off
slons
Filling.
bank
of
As the backing hardens, a
small pubble stone.
/
quarry
debris and gravel will be carried up simultaneously
earths
filling
with it, and the
behind it will be them
pammed in to mich layers.
Roadway. Rom the concrete back
ing finished off at the level of the
second Course).
it is
to proposed,
line conerite of
lay a hood-covering also
two feet thick and
of
the same
proportions
as that used in the backing extending back