The republic. [volume] (Washington [D.C.]) 1849-1853, 1849-07-14
In all, SIG blocks.


wide, and "a inches thick
In all, 5l6 blocks.
The above headers only to be dressed on the
beds and builds, which dressing is TO extend 2 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 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 srctchers, closing
blocks, and counterfort encasement stone, from the
foot course to the surface of the water.
LIST front. 1853 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
bed, "a inches high.
9TH counterforts. 3Os stretchers 81 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, and the two ends of the stone alone to be
dressed, with the exception of fair draft of an inch
run round the face and back of each stone, 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 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 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 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 AZ headers feet inches, 9 feet wide
the face, Is inches high.
4th 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 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 10Th 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. s. Coping.
434 lncal feet coping, feet wide on the bed, and
from feet TO 5 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, as 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 tpork. Smooth and
true draft lines, two inches wide, must be run
round each surface, which must be worked per
fechy out Of toind within the draft lines the stone
must be dressed 10 a true even surface without
depression of any kind, and finished by tooling at
right angles 10 the BEDS and ON 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 arris edges Of all joints of the work above the
surface Of the water included in Bill B. Nos. 1, q
and 3, must be sharp, clean, and true, without
break, nick, or spalling Of any kind. The front
top line Of the coping is 10 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
2 IL TO be well executed Rusticated rock work."
formed by fine cut draft lines, too inches ride run
round the surface as above specified; said draft
lines 10 be sunk to depth Of not less than Aaf an
inch, more than tDo 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 Class Work.
On The Beds and Builds Of the fine fooled ,ook
abovs the todter.--The arris shall be straight 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 sGface within the draft lines
must be dressed true 10 a straight edge, without
following. No depression Of any kind will be adj
mitted within inches Of the face arris within
the draft lines on the back and joints; and none
viii 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 fourth Of the Of the
surface
Third Class Work.
~ The stone included in Bills A, Nos I, 2, and 3,
on al Odt used beloi0 the surface Qf s toate, ciu be
of Diis description
The corners and edges of each stone must be full
TO the lines. A 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 10 each other, and Of the thickness
stated in the bill Within the draft lines the sur
lace Of the stretcher beds must be pointed down and
hnished with common axe, 80 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 strccher 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 same allowance in this respect
VIII BE- made in the second class work.
TAR draftof an inch is TO be run round the front
and back Of each stretcher and round both ends of
each header, 80 as 10 sho'o ftM corners and square
edges.
The builds or joints must be dressed square TO the
face lines and 10 the beds Of the stone. No slack
POINTS will in any case be admitted.
The work will be laid in alternate header and
stretchcr courses both beneath and above the water
the face Of the stone being left rough will form
regular rusticated rock work sshar, except the CO.
ping which will be full dressed ashlar
Quality Of the Stone.
All the stone embraced in the foregoing Bills must
be Of the best and most durable description Of Ora
mite or Sienite and Of these two the latter will re
ceivc decided preference; and in every case the
stone having the least fcldspar in its composition
and being therefore less liable to dsntegration, 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