CO129-181 - Governor Hennessy - 1878 [1-8] — Page 78

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