American telegraph. [volume] (Washington [D.C.]) 1851-1851, 1851-09-29

PROPOSALS. will be received by the undersigned
until the 9th day Of October next for the extension
Of the Northern Market House. according to the following
SPECIFICATIONS
For the erection of the west wing to the Northern
Market House.
Diuensons-TAe length to be 72 feet from the centre
building the outside of the front wall Sth street
the width to be 81 1912 feet in the clear of the walls
Foundations to be of best quality blue rock, laid in
men mortar to be two feet thick starting from trenches
dug out is inches below the present surface of the ground
and brought up level line inches below the top Of
of stone to be neatly oned wherever exposed be-
yond the brcwork the outside and inside faces of the
stonework which show above the pavements to be laid
line and neatly ponted the top of the stone founda
ons between the two doors Sh street to be covered
with sills OF New York stone inches thick each sill to
in one piece; foundations for the support of step
each door to be connected with the main wall, project
10 inches and brought up sufficiently high to receive
granite step 9 inches thick.
and character of the material to correspond with the
brickwork OF the present buildings to commence eight
finish in height even with east wing. The sth street
front to be finished with pednent corresponding with
the pitch of the present roof From the stone founda
lions to the windowsilis the brick to be laid in
the remainder in mortar composed of best
quality woodburnt lme and sharp sand in due proper
tions There lie the number Of windows and
doors in the west wing the wing. The floor
against the walls to be filled from the present surface
to inch of the pavement with oyster shells, glass
backsmiths cinders marble granite spauls at least
two feet broad the remainder of the grading to be OF
clay the whole to be sody rammed and insured against
paving BRICK four inches of sharp sand and to be
neatly fitted to the outside walls and to the present pave
ment; the floor to decline one foot.
Chn Stone H0rI.-Sixteen wndow-sills, by inches,
and of length suited TO the breadth of the window
frames to be ofgrante two steps Of granite feet long,
lS inches wide and inches thick eight granite hinge
blocks Is inches long, by 1917 inehes-
Carpenters Work and Materdl-The roof to be con-
sructed OF common rafters Of H. s. pine inches at the
bottom and inches at the top and inches thick placed
feet from centres to be butted together at the
and notchedinto the cengoiss at the heel the ceiling
Iintaf. he rSna0 nv inpha
sary may be in two lengths by using full lap and key
splice strong brace of 5 yellow pine sinches broad to
be nailed each side of the raer down to the bottom
the ceingost from which braces of "a yellow pine are
be Nailed extending the centre of the raers
from the place Of intersection Of the braces with the ra
other perpendicular braces TO be nailed to the cell
ngjost the sheahing to be Of good sound cus TO be
shngled in the best manner with the best quality cy
press juniper lnch shingles; the wood cornce to be
extended round the west wing corresponding with the
east wing TO be of we'll seasoned white pine free from
and looseknots the wndowframes TO be made of 2la-
inch heart yellow pne each frame to have six wrought
iron bars 81 inches diameter and supported in the
by horizontal bar ~ inch by a inch, through which
the bars pass the frames TO be constructed
to admit of sashes case they should be desired herea
the shutters to be made like those TO the present
building, to be hung with 1nch strap hinges and hooks,
put with rvets each set Of shutters TO be fastened
with middle slip shutterbots the nels to be of wood
like those the present windows; the doors to be Of
the same those eth street. be Of N
O. 81 thick dressed tongued and grooved and beaded
lined In the inside with dressed a. tongued and grooyed
and beaded white pine strongly nailed together with
wrought nails, and hinged with two feet wrought iron
strap hinges put with ryets taps TO be fast
ened the top with Epring and chains and suitable
swinging iron bars and staples. The racks hooks,
side benches to be made those in the east wing
Idintitag-Tbe cornce, frames, shutters bars racks
and doors to be painted three coats Of pure lead
boiled oil.
The top Of the horizontal cornoe to be with tin
The contractor to have the earth well filled In to the out
side Of foundation walls and solidly rammed aud to
place whatever OF outside pavements may be removed
injured in the erection Of the west wing lie IL "a
have the entire work done in faithful and workmsnlkc
manner TO the satisfaction Of the Mayor and the Com
mssoners appointed to superntend the erection said
wing and, upon the completion of the work. to remove
from the promises oil the oal arising from the work.
The brick work to be finished or before the 2ot
day Of November next and the entire work TO be com
pleted by the first day Of January next
WALTER LENOX, Mayor.
JOHN c. HARNESS.,
MILTON M WARD,
sep 20--3t Commissioners