The republic. [volume] (Washington [D.C.]) 1849-1853, 1849-07-23
In all, SIC blocks.

In all, SIC blocks.
The above headers are only to be dressed on the
beds and builds, which dressing is to extend feet
6 inches nwards from each end of the stone. There
is no face work, but draft of 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 d.
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 counterort encasement 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 stretchers feet long, Is inches wide
sF bed, "a inches high.
4th counterforts. 3OS stretchers 81 feet long, Is
inches wide bed, "a inches high.
The above stretchcrs are required to be dressed
only on 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
ceved that the back sretchers and counterort stone
have but lSinch BEDS while the rise of the course
is "a inches 1t is the l8-inch beds and the builds
of these stone that to be dressed.
Bill II, No. 8,
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 course 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 lS inches thick. The
beds and builds of these stone are to be dressed but
not the ends, except the dr~4s befo~e- directed.
Bill B, No. l,
Includes all the Headers of the rustcated rock
work above the water
18th course. AZ headers feet inches, feet wide
on the face, Is inches high. .
l4th and 18th courses rs 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
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, 14th 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 rustcated
rock work.
Bill B, No. 3.-Coping.
434 ineal 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 the specifications for the first class fine
cut work. The beds and builds are to be dressed
truly, to make close joints, with sharp arris
edges and full corners. The back line of the top to
be full and square.
First Class Work.
The face and the top of the COPING must be of the
usual description, of fine cut scUk. Smooth and
true draft fines, two inches wide, must be run
round each surface, which must be worked per-
fecy out of scind within the draft lines the stone
must be dressed 10 a true, 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 as would be produced by patent ham
mer of six blades TO an inch.
The arrs 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 TO be rounded the arris
edge, two inches ON each face, the quadrant Of
circle of two inches radius.
The face of the stone included in Bills Nos | and
is TO be well executed Rusticated rock work, ;"
formed by fine cut draft lines, hco inches ,cide, run
round the surface above specified; said draft
lines TO be sunk to depth of NOT less than half an
inch, more than t,co 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. if4
NeCOnd CtdSS work.
On the Beds and Builds qf Ds fine fooled wct
above the tcdfsr-Thc arris shall be straight and
true, forming 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 to
each other. The surface within the draft lines
must be dressed true TO straight edge, without
following. No depression of any kind will be adj
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 or builds exceeding
inches diameter and one inch in depth, nor closer
together than one foot and in no case where they
shall together exceed onefourh of the area Of the
surface.
Ihird Class Work.
Al the stone included in Bills a, Nos l., 2, and 3,
all that used belop the surface Of the mater sciu be
qf this description.
The corners and edges of each stone must be full
TO the lines. fair, straight draft, two inches
wide, must be round the top and bottom beds
which must also be taken truly out Of wind, and
made parallel to each other, and Of the thickness
stated in the bill Within the draft lines the sur
face of the strctchcr beds must be pointed down and
finished with common axe so as to present full,
even, though rough surface, to a straight edge.
For two feet OF the beds at the middle Of each front
and back stretoher 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 i'm diameter and half an inch in
depth, and not more than two such dcpressions in
this portion Of the surface ON the remainder of the
beds and builds the allowance, in this respect
will be made as in the second class work.
fair draft Of an inch is to be run round the front
and back Of each stretcher and round both ends of
each header, to sho,c full corners and square
edges.
The builds or joints must be dressed square to the
face lines and TO the beds Of the stone. No slack
joints will in any case be admitted
The work win be laid in alternate header and
stretcher courses both beneath and above the water