The republic. [volume] (Washington [D.C.]) 1849-1853, 1849-07-18


beds and builds, which dressing is to extend feet
inches inwards 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 tial 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. r, tu
Bill II, No. 2,
Includes all the front and back stretchers closing
blocks, and counterfort encasement stone from the
foot course TO the surface of the water.
lst front, 46S stretchers feet long, 2 feet wide
bed, "a inches high.
I'd front "a blocks 4 feet long, 2 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 are required to be dressed
only on the beds and builds the face and back being
left as split from the quarry. That is, the top, bot
tom, AMI the two ends of the stone are alone to be
dressed with the exception Of fair draft of inch
run 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 counterfor stone
have but lSinch BEDS while the rise of the course
is "a inches II is the lS-inch beds and the builds
of these stone that are to be dressed.
Bill II, No. 3,
HEADERS.-l34 lineal feet of header blocks, of
5 feet led, 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 sloped inwards, at the
rate of one in six for three feet, that the inner
ends of these stone but Is inches thick. The
beds ard builds of these stone to 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. ~ headers feet inches, feet wide
on the face, IS inches high
18th and 18th courses. rs headers feet long, feet
wide on the face, Is inches high.
These headers TO be dressed throug hout 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 rusucated rock work, hereafter described
Bill B, No. 2,
Includes all the Stretches of the rusticated rock
work above the water, l3h l4th, and 9Th 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 ruscated
rock work.
Bill B, No. 9.-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 10 the specifications for the first class fine
cut work. The beds and builds are to be dressed
truly, so 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 tcork. Smooth and
true draft lines, two inches wide, must be run
round each surface, which must be worked per
fectiy out Of icind within the draft lines the stone
must be dressed 10 true, even surface without
depression of any kind, and finished by tooling at
right angles 10 the beds and on the top of the con-
ing at right angles TO the front line. The tooling
10 be such as would be produced by patent ham
mer of six blades 10 an inch.
The arris edges of all Joints Of the work above the
surface OF the water included in Bill b. Nos. l. 9,
and 8, 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 a
circle Of two inches radius.
The face Of the stone included in Bills Nos and
2 II u be well executed Rusticated rock work"
formed by fine cut draft lines ftco inches ride run
round the surface above specified; said draft
lines TO be sunk TO depth of not less than half an
inch, or more than ttco inches below the rough sur
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 Glass Work
On The Beds and Builds Of the fine fooled rcovk
dbous The cateT.-The arris shall be straight and
true, forming 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 TO
each other The surface within the draft lines
must be dressed true 10 straight edge, without
No depression Of any kind will be adj
mitted within inches Of the face arris OF within
the draft lines on the back and joints; and none
will be admitted ON the beds or builds exceeding
inches diameter and inch I'm depth, nor closer
together than one foot and in case where they
shall together exceed fourth Of the Of the
surface.
ihird Class Work.
an The STONE included in Bulls A, Nos /, 2, and 3,
or all that used beiow The surface Of the ,oate, ,ciu be
Of this description.
The corners and edges Of each stone must be full
10 the lines A 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 stretchcr beds must be pointed down and
finished with common axe, so as 10 present full,
even, though rough surface, to a straight edge.
For two feet Of the beds at the middle Of each front
and back strctcher, 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 ON the remainder of the
beds and builds the same allowance, in this respect
will be made in the second class work
fair draft Of inch Is to be round the front
and back of each sretcher, and round both ends of
each header, so 20 shoto f,M corners and square
edges
The builds or joints must be dressed square TO the
face lines and 20 the beds Of the stone. No slack
joints will in any case be admitted.
The work will be laid in alternate header and
strechcr courses both beneath and above the water:
the face Of the stone being left rough will form
regular rusticated rock work ashar, except the co.
ping, which will be full dressed ashlar
Quaiity Of the Stone.
All the stone embraced in the foregoing Bills must
be of the best and most durable description of Ora
mite or Scnite and of these two the latter will re-
,eive a decided preference; and in every case the
stone having the least feldspar in its composition
md being therefore less liable TO disintegration, will
be preferred.
Specimens Of the stone proposed to be furnished,
properly labelled, should accompany the bids stat.
ing the precise location of the quarry. The stone
must in all cases be such will withstand the wash
Of the sea.