The republic. [volume] (Washington [D.C.]) 1849-1853, 1849-07-17

wide, and 20 inches thick
9th do ~ headers feet inches long, 2 feet
wide, and % inches thick
10th do Al headers feet inches long, 2 feet
wide, and % inches thick
18th do AZ headers feet inches long, 2 feet
wide and pa inches thick
18th do A headers feet inches long, = feet
wide, and "A inches thick
In all, 5l6 blocks
The above headers are only to be dressed ON the
beds and builds, which dressing is to extend feet
inches inwards from each end of the stone There
is face work, but draft of an inch must be run
round each end of the stone, showing full corners
and square edges, which must continue full to the
gauge within The ends and middles of the stone
may be left split from the quarry, being full di
mansions, but no allowance will be made for any
excess of size.
Bill fl, No. 2,
Includes all the front and back stretchers, closing
blocks, and counterfort stone, from the
foot course to the surface of the water
LIST front 46S stretchers feet long, feet wide
bed, "a inches high.
I'd front "a blocks feet long, feet wide bed, "a
inches high
Sd back. $50 sretchcrs feet long Is inches wide
bed, "a inches high.
4th counterforts. 305 stretchers s. feet long, IS
inches wide bed, "a inches high.
The above stretchers are required to be dressed
only the beds and builds, the face and back being
left as split from the quarry. That is, the top, bot
tom, and the two ends of the stone alone to be
dressed with the exception of fair draft of inch
round the face and back of each stone, SO to
show full courses and square edges 1t will be per-
ceved that the back stretchers and counteror stone
have but lS-inch beds, while the rise of the course
is "a inches 1t is the lS-inch beds and the builds
of these stone that to be dressed.
Bill II, No. 3,
Is the balance of the foot course.
HEADERS.-l34 lineal feet of header blocks, of
feet bed, and from To feet wide on the face.
This is to be feet thick for feet in from the
face, thence the top bed is soped inwards, at the
rate of one in six for three feet that the inner
ends of these stone but Is inches thick. The
beds and builds of these stone be dressed but
not the ends, except the draft before directed.
Bill B, No. 1,
Includes all the Headers of the rusticated rock
work above the water.
18th course. AZ headers feet inches, feet wide
on the face, Is inches high.
l4th and 18th rs headers feet long, feet
wide on the face, Is inches high.
These headers 10 be dressed throughout their
whole length, on the top and bottom beds and for
q feet in from the face Of the builds The face is TO
be rusticated rock work, hereafter described
Bill B, No. 2,
Includes all the Stretches of the rusticated rock
work above the water, 18th, l4th and 18th courses,
100 stretchers, feet long, feet bed, Is inches
high.
The beds and builds of these courses are to be
closely dressed; and the face, first class rusticated
rock work.
Bill b, No. 3.-Coping.
434 lineal feet coping, feet wide ON the bed, and
from feet TO feet long, and feet thick.
The coping is TO be dressed on the top and face
according to the specifications for the first class fine
cut work. The beds and builds are to be dressed
truly, as 10 make close joints, with sharp arris
edges and full corners The back line Of the top 10
be full and square.
First Glass Work.
The face and the top of hs coping must be of the
usual description, of fine cut tcork. Smooth and
true draft lines, two inches wide, must be run
round each surface, which must be worked per-
fechy out Of tcind within the draft lines the stone
must be dressed TO true, even surface, without
depression of any kind and finished by tooling at
right angles TO the beds, and the top of the cop
ing at right angles to the front line The tooling
TO be such would be produced by patent ham
mer of six blades 10 an inch
The arrs edges Of all joints Of the work above the
surface Of the water included in Bill Il, Nos. /, g.
and 3, must be sharp, clean, and true, without
break, nick or spalling Of any kind The front
top line OF the coping is TO be rounded the arris
edge, two inches on each face or the quadrant of
circle of two inches radius.
The face Of the stone included in Bills Nos. | and
" 20 be well executed " Rustcated rock work -
formed by fine cut draft lines, fco nces ,cidt,
lines TO be sunk TO a depth Of NOT ie. than hat an
inch, than f,oo inches, below the rough sur
face Of the face Of the stone, within said draft lines
The rough surface Of the face to be full and round
ing from the draft lines, and in case hollow, or
sunk below the limits
Second Class Work.
On the Beds and Builds Of The fine fooled ipok
aJoue the tcate.-The arris shall be strpight and
true, forming a close, and clean even joint True
draft lines inches wide must be run entirely round
each bed, and the surface Of the top and bottom
beds worked perfectly out Of wind, and parallel 10
each other. The surface within the draft lines
must be dressed true 10 straight edge, without
following. No depression Of any kind will be ad-
mitted within inches Of the face arris within
the draft lines on the back and joints; and none
will be admitted on the beds or builds exceeding s
inches diameter and one inch in depth, nor closer
together than one foot and in no case where they
shall together exceed one fourth Of the area Of the
surface
third Class Work.
dH Ds stone included ,n Balls a, Nos. /, 2, and 3,
or all that used beiow The face Of the Datsr, ,cH Be
qf Dns description
The corners and edges Of each stone must be full
10 the lines. fair, straight draft, two inches
wide, must be run round the top and bottom beds !;
which must also be taken truly out Of wind, and
made parallel 10 each other, and of the thickness
stated in the bill. Within the draft lines the
face OF the srecher beds must be pointed down and
irocu Win common axe, so ~ 70 present full,
even, though rough surface, to a straight edge.
For two feet Of the beds at the middle Of each front
and back stretcher and the dressed portions Of the
beds of each header must be worked more closely,
and no depression will be therein admitted exceed
ing three inches in diameter and half an inch in
depth, and not more than two such depressions in
tins portion Of the surface the remainder of the
beds and builds the allowance, in this respect,
will be made in the second class work
fair draftof an inch Is 10 be round the front
each afr q
each header, 90 10 shoU fun corners and square
edges
The builds joints must be dressed square 10 the
iace lines and 20 the beds Of the stone. No slack
joints will in any case be admitted.
Ihe work will be laid in alternate header and
sretcher courses both beneath and above the water
the face Of the stone being left rough viii form
regular rustlcated rockwork sshlar, except the CO.
ping, which will be full dressed ashlsr.
Quality Of the Stone.
All the stone embraced in the foregoing Bills
be OF the best and most durable description Of Grs
mite or sienite, and Of these two the latter will
ceive a decided preference; and in every case the
I stone having Ieaat fedanar In ia