American telegraph. [volume] (Washington [D.C.]) 1851-1851, 1851-10-02

DROPOSALS 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.
Dnensions-The length to be 72 feet from the centre
building to 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
ment mortar to be two feet thick starting from trenches
dug out Is inches below the surface of the ground
and brought up to level line inches below the top
the stone foundations of the present building; the top
of stone to be neatly onted wherever exposed be
yond the the outside and inside faces of the
stonework which show above the pavements to be laid
to line and neatly poned the top of the stone founda
tons between the two doors St street to be covered
with stills of New York stone inches thick each sill to
be in piece; foundations for the support Of step to
each door to be connected with the main WALL to project
Is inches, and brought up sufficiently high to receive
granite step inches thick.
Brick U6rk-The thickness of the walls style of inish
and character of the material to correspond with the
brickwork Of the present buildng to commence eight
inches below the top of the present stonework and to
finish in height with cast wing. The Sth street
front to be finished with pediment corresponding with
the pitch of the present roof From the stone founda-
tons to the wndowsills the brick to be laid in
mep mortar the remainder in mortar composed of best
quality wood.burnt lme and sharp sand in due proper
tons There TO be the same number Of windows and
doors in the west wing in the east wing. The floor
against the walls TO be filled up from the present surface
to one inch of the pavement with oyster shells, glass
blacksmths cinders marble granite spaus at least
two feet broad the remainder of the grading to be of
clay the whole to be sody rammed and insured against
undue settlements the floor to be paved with best quality
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.
Cut Some H0rk.-Sxteen window-sills, by inches,
and Of length suited to the breadth Of the window
frames to be ofgranite two steps of granite feet long
is inches wide, and inches thick; eight granite hinge
blocks Is inches long, by 1917 inches.
Carpenters Work and MateridL-The roof to be con
structed Of common rafers OF r. pine inches at the
bottom and inches mt the top and inches thick placed
two feet from centres to be buted together at the
and notchcd into the ceiling osts Mt the heels the ceiling
osts TO be good t. s. pine by 10 inches, and II neccs
ary, be in lengths by using full lap and key
splice strong brace of 54 yellow pine Sinches broad to
be nailed each side Of the raer down to the bottom Of
the cengjois from which braces Of 81 yellow pine are
to be nailed extending the centre Of the raers and
from the place of intersection Of the braces with the ra
ers other perpendicular braces to be nailed to the cell
ngois the sheathing TO be Of good sound cus to be
hnglcd In the best manner with the best quality cy-
press juniper l2nch shingles; the wood cornce to be
extended round the west wing corresponding with the
east wing TO be Of well seasoned white pine free from sap
and looseknots the windowframes TO be made Of ~
inch aheart yellow pine each frame to have six wrought
iron bars 81 inches diameter and supported in the centre
by horizontal bar inch by "a inch, through which
the bars pass the frames to be constructed as
admit Of sashes in they should be desired herea
the shutters TO be made like those to the present
building to be hung with l4nch strap hinges and hooks
put on with rvets each set Of shutters TO be fastened
with middle slip shutterbos; the nels to be OF wood
like those the present windows the doors to be OF
the size those 18th street. to be of all heart
c. 81 thick dressed tongued and grooved, and beaded,
lined in the inside with dressed IL tongued and grooved
and beaded white pine strongly nailed together with
wrought nails and hinged with two feet wrought iron
strap hinges put with riyets taps to be fast
ened the top with spring bolts and chains and suitable
swinging iron bars and staples The racks, hooks and
side benches be made those in the east wing
ItiRng-The cornice, frames, shutters, bars racks
and doors be painted three coats Of pure lead and
boiled oil.
The top of the horizontal cornico to be covered with tin
The contractor 20 have the earth well filled in 10 the out
side Of foundation walls and sodly rammed and to re-
place whatever of outside payemcnts be removed or
injured in the erection of the west wing He is also to
have the entire work done in afathu and workmanike
manner TO the satisfaction of the Mayor and the Com
missoncrs appointed TO superntond the erection Of said
wing and, upon the completion Of the work. remove
from tho premises all the offa arising from the work
The brick work TO be finished before the 10th
day of November next and the entire work to be COM
pletcd by the first day of January next.
WALTER LEMON, Mayor.
JOHN @. HARDNESS,
MILTON NJ. WARD,
oo-at Commissioners.