The republic. [volume] (Washington [D.C.]) 1849-1853, 1849-08-01
In all, sic blocks.

18th do A headers feet b 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 encasement stone, from the
foot course to the surface the water.
LIST front. 46S stretchers 8 feet long, feet wide
bed, "a inches high.
I'd front "a blocks feet long, feet wide bed, "a
inches high.
Sd back. $50 stretchers feet long, Is inches wide
bed, "a inches high
4th counterforts 30S stretchers g. feet long, Is
inches wide bed, "a inches high
The above stretchers required to be dressed
only the beds and builds the face and back being
left 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
run round the face and back of each stone, as to
show full courses and square edges. 1t will be per-
ceved that the back stretchers and counterort stone
have but lSinch BEDS while the rise of the
is "a inches. 1t is the lsinch beds and the builds
of these stone that are to be dressed
Bill fl, No. 3,
Is the balance of the foot course.
HEADERS.-l34 lineal feet of header blocks, of
feet bed, and from to feet wide the face.
This is to be feet thick for feet in from the
face, thence the top bed is sloped inwards, at the
rate of one in six for three feet, that the inner
ends Of these stone are but Is inches thick. The
beds and builds of these stone to be dressed, but
not the ends, except the draft before directed.
Bill B, No. l.,
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 courses 76 headers feet long, feet
wide on the face, Is inches high.
These headers are to be dressed throughout their
| whole length, on the top and bottom beds, and for
feet in from the face Of the builds The face is
be rustcated rock work, hereafter described.
Bill B, No. 2,
Includes all the Stretches of the rusticated rock
work above the water l3th l4th, and 5th 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 linesl feet coping, feet wide ON the bed, and
| from feet 10 s feet long, and feet thick.
The coping is to be dressed on the top and face,
according the specifications for the first class fine
cut work. The beds and builds are 70 be dressed
truly so as 10 make close joints, with sharp arrs
edges and full corners. The back line of the top
be full and square.
First Glass Work.
The face and the top of the coping must be Of the
usual description, Of fine cut tc0k. Smooth and
true draft lines, two inches wide must be run
| aHh hfrh do rl.d,
fecty out of pind within the draft lines the stone
| must be dressed to a true, even surface without
/ depression Of any kind, and finished by toohng at
right angles to the beds, and on the top Of the cop
ing at right angles to the front line The tooling
! 10 be such would be produced by a patent ham
| mer of six blades 20 am inch
The srrs edges Of all joints of the work above the
surface Of the water included in Bill b. Nos. /, 2,
and 3, must be sharp, clean, and true, without
break, nick, or spalling Of any kind The front
top line Of the coping is 70 be rounded the arris
edge, two inches each face, or the quadrant Of
| circle Of two inches radius.
| The face Of the stone included in Bills Nos. and
2 is TO be well executed Rustcated rock work, -
formed by fine draft lines, tlco inches toide run
round the surface above specified; said draft
lines TO be sunk 10 depth Of not less than half an
inch, or more than f,oo inches below the rough
face Of the face Of the stone, within said draft lines
The rough surface of the face 10 be full and round
ing from the draft lines, and in no case hollow or
sunk below the limits.
Second Class Work
On the Beds and Build, q the fin, fooled ,oori
aboue The todtr.-The arris shall be straight and
true, forming a close, and clean even joint. True
draft lines inches wide must be entirely round
each bed and the surface of the top and bottom
beds worked perfectly out Of wind, and parallel u
each other. The surface within the draft line,
must be dressed true TO a straight edge, without
following. No depression Of any kind will be ad
mitted within inches Of the face arris or within
the draft lines on the back and joints; and none
will be admitted ON the beds builds exceeding {
inches diameter and one inch in depth, nor closer
together than one foot and in no case where they
shall together exceed fourth Of the Of the
surface.
Third Class Work.
Au the stone included in Biils A, Nos. I, 2, and 8
al that used beiop the surface If the pafer toiH b.
of this 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, anc
made parallel 10 each other, and Of the thickness,
stated in the bill Within the draft lines the sur
face Of the srecher beds must be pointed down anc
finished with a common axe, az 10 present a full
even, though rough surface, 20 straight edge
For two feet Of the beds at the middle Of each from
and back stretcher and the dressed portions Of th
beds Of each header must be worked more closely
and no depression will be therein admitted exceed
ing three inches in diameter and half inch in
depth, and not more than two such depressions il
this portion Of the surface the remainder of tn,
beds and builds the allowance in this respect
will be made az in the second class work
fair draft Of inch is 10 be run round the from
and back Of each stretcher and round both ends O
each header, 40 10 shoto full corners and sg,iar
edges
The builds joints must be dressed square 10 III,
face lines and TO the beds Of the stone. No sscl
joints will in any case be admitted
The work will be laid in alternate header anc
sretcher courses both beneath and above the water
the face Of the stone being left rough will form
regular rusticsted rock work sshlar except the co
ping, which will be full dressed ashlsr.
Quality Of the Stone.
All The stone embraced in the foregoing Bills mus
be Of the best and most durable description Of rs
mite Senite, and Of these two the latter will
ceive decided preference; and in every case tn,