Specification for a Building to contain Mr Babbage's Calculating Engine

SPECIFICATION
for
Erecting and finishing a Building to contain Mr Babbage's Calculating Engine, Workshops, &c. and of Alterations and repairs to the adjoining House in East Street Manchester Square.

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Decimus Burton
6 Spring Garden
November 12th 1831
Specification for Erecting and finishing a Building to contain Mr Babbage's calculating Engine, Workshops, &c. and of alterations and repairs to the adjoining House in East Street Manchester Square according with the drawings accompanying marked from 1 to 8 [drawings missing] and from such detail drawings as may be provided by the Architect during the Progress of the Works.
6 Spring Garden Nov 12th 1831
The present South of East fence Walls of the open space of ground where tinted red on the plan to be taken down. The other fence walls to be underpinned if found necessary. The roof back wall &c. of the back buildings to the House in East Street to be also taken down as well as the stairs on Ground Story passage, partition fittings &c., that may require to be removed in order to effect the alterations shewn by the drawings -the materials to be cleaned and piled and such of them as are sound and fit for the purpose will be allowed to be reused -the remainder to be carted away and to be the property of the Contractor.
Digger
Dig out the ground for the concrete walls and space under the floors &c. as shewn by the Section; also for sewers, drains, cesspools, and other digging that may be found needful fill in and ram the ground round the footings and drains as the Brickwork proceeds.
Dig out the ground in passage to form a carriage way from East Street with a regular declinity. Shore up the adjoining walls if found necessary for underpinning (see Bricklayers). Cart away all superfluous earth and rubbish as it may accumulate during the progress of the works, and leave all clear at the finishing of the job. the trenches of the Walls are to be dug on a level and of the depth shewn by the section. The foundations are to be approved by the Architect before the Brickwork is commenced.
The whole of the yards and carriage way to be formed to the several levels req^d and a layer of dry brick rubbish laid over the same 6 ins in thickness, and afterwards a layer of Granite broken stones not execeeding ¼ Cube laid on in layers 3" thick and every layer well rammed and rolled.
Hoard
Erect a substantial Hoard in East Street to enclose the front and return ends to project 6 feet from the line of Area railing and to be 9 feet high, to be formed with ¼ deal boarding close jointed, and uniform with proper ports, rails and Gates with fastenings &c. that may be found necessary.
Provide a watchbox for the Gatekeeper with a bell weights and pullies, also a box for the drawings and a stool and desk for the Clerk of the Works.
Concrete
Include in the estimate 150 yards cube of concrete in the proportions of ¹/₇ dorking lime to ⁶/₇ well washed river Gravel and mixed together while hot and shot into the trenches in layers not exceeding 9" in thickness, and every layer well rammed. Should the whole or only part [del: not] be required a deduction will be made from the amount of contract at the rate of 8/6 pr yard cube including digging.
Bricklayer
All the walls are to built with the best hard burnt Grey Stocks (a sample of which is to be shewn to the Architect and approved previous to any quantity being carted to the premises). The mortar to be compounded of the best stone lime or other of equal quality [del:as] that shall be first approved by the Architect and good Thames sand taken from above Vauxhall Bridge, mixed in the proportion of one Bushel of Lime to two bushels of sand, well beaten and tempered together in a [word unreadable: Passmill?] constantly kept full and labourers to beat it up after passing through the same. The cement to be from a Manufactory approved by the Architect, and to be mixed in the proportion of three bushels of cement to five bushels of river sand well washed.
All the footings, walls, Chimnies &c. are to be carried up the height, thickness &c. shewn and figured on the several drawings, leaving all apertures as herein described -bring forward all brickwork for Corbels and other projections as may be requisite. The four courses to rise more than 11 ³/₄" and every course to be closely bedded and well flushed up.
All the external Brickwork to be faced with picked stocks of a regular shape and uniform colour, laid with a neat flat parallel joint and rule jointed, the external Arches to the openings and blanks to be 12" in the face guaged and set in Putty. The underside of all the Arches and the reveals to the external openings to be stuccoed with roman cement and painted five times in oil.
Turn inverted Arches in 3 half bricks under all the openings of Ground story and also similar discharging Arches in roman cement over all openings where sufficient height and abutment can be obtained.
Build the drains as shewn by the plans. Carry up Cesspools in one brick in Cement under each bell trap and rendered inside in Cement. Provide and fix proper 6["] cast iron bell traps properly rebated into stone paving where shewn in plan, all the drains to be built in roman cement. The main drain to be continued from the Building to join the Common Sewer in East Street (the space from the Building to main sewer) to be of the size and construction as may be required by the Commissioners of Sewers and a strong cast iron grating to be fixed in do to stop the vermin -all the drains to be properly trapped. In digging should any old drains be discovered the same are to be taken up -the bricks which are sound may be reconverted -but such drains as may be required for the drainage of any of the adjoining premises, to be reinstated and made perfect in every respect.
Turn arches in two half bricks in cement over the calculating room, Engine room, and passage adjoining from Iron and Stone openings with 1 ³/₄ tension rods which are described by the drawings, the spandrills to be filled up solid in Cement and the whole surface to be raised up with brickwork in cement to form the several levels required and rendered over on top with Roman Cement at least 1" in the thickness. Build stone skew Backs in the walls for abutments of Arches and put 1½" wrought iron tie rods with nutts and plates where drawn to prevent the spreading of the Arches. Put stone template 14" by 24" of 6" thick run with lead to receive the iron springers.
Parquet the flues and case the same at the completion of the works, set in each of the new and old fireplaces a Grate and Stoves which will be provided.
Bring forward Brickwork and provide 6 Inch York Stone Corbles where required to carry Jambs and fire places pinned into the Walls in cement at least 12 ins.
Turn Arches in two half bricks in Cement over all fireplace openings on wrought Iron Bars 2 f ³/₈ to go through the Jambs and turn up and down two Inches -turn Trimmers in half a brick in Cement to carry hearths.
Put Cement Chimney Pots to each of the new flues and reinstate such to the old flues as may be required and the whole of the pots (old and new) to be set and planched in plain tiles in Cement. Leave 50 air holes and fix an Iron Grate box in each 9 x 3 for the free circulatin of air under the floors.
The two courses of Brickwork directly under the ground floors and the two courses under the stone Coping of parapets to be built in cement the joints of the latter to be raked out and pointed as other brickwork.
The workshop on the Ground Story and Cole cellar of dweling House to be paved withhard brick on edge the ground to be properly filled in and levelled with hard dry brick rubbish and lime core to receive the same.
Grout the whole of the walls through out every fifth course, the grout to be made up as that described for the mortar and well mixed in a proper Tub, care to be taken that the external walls be not defaced by this operation.
All the walls to be built regularly round scaffold high, before other parts are raised and covered up every Evening when required with straw hurdles to prevent the weather from damaging the building.
The north wall of the Engine Room to be built to receive a sash and frame in case it should be requisite, and to be filled up flush with brickwork and arch in Cement over the same as to other windows. The North wall of the Dwelling House and back buildings to be repaired and made good.
The whole of the external Brickwork of the premises intended to remain including the Chimney Shafts and fence walls to be repaired made good and flat joint pointed the joints being previously raked out -the whole of the front next East Street to be raked out flat and tack pointed the inside of all the old parapets to be rendered with Roman Cement. Empty the Cesspools and clear away the soil.
Make good all damage done to either of the adjoining premises in consequence of performing the works set forth in this specification.
Build Piers in Cement on footings as before described the size figured on the Plans to carry the bressemers of the back and front walls to the Dwelling House, put 3 Inch York Stone Templates on D^o.
The whole of the walls of the Workshops the Carriage Way and Coach Cellar to be pointed and double lime whited.
Underpin the North Party walls of Dwelling House with brickwork in Cement occasioned by forming the Carriage Way from East Street. The underpinnings to be of whole thickness of the incumbent brickwork built from two courses of footings to be built on the level of the foundations in lengths shewn by the dotted lines on the drawings and stepped at every length, so as to divide the difference of level in equal parts.
Carry up the Brickwork in Cement in front next East Street to form Pilasters Entablature &c. as shewn by the Elevations; bring froward the Brickwork for Cornices -turn a 12 inch brick arch over the openings in Cement on a wrought iron cradle in two ribs, constructed with wrought Iron 1½ by ½ let into 6" York stone templates bedded on the Brick Pilasters and let into the present wall.
The division wall between the Carriage way and Passage for workmen and Dwelling House to be wholly built in Cement the part under the level of the paving of the Dwelling &c. to be built 1ft 10" in thickness on footing, and in similar manner as described for the party wall on the opposite side of the carriage way.
[Del: The opening at west end of carriage way to have a cradle over the same formed with wrought iron 1½ by ½ in two ribs, with similar horizontal and connecting ties, secured on 6" York stone templates and run with lead turn 3 round arches over the same in cement from Portland Stone and prizers the height required and 1ft 2" square on the bed.]
Cut away the present projecting Brickwork in Carriage way through Dwelling House and make good the same, the Jambs of fireplace above to be supported by stone Corbels before described and all other brickwork connected with the same to be made perfect in every respect.
Leave [word unreadable: chan?] in Brickwork of party wall, on a level of the present wall and cope the same with 3" York stone pinned into the new work 3 inches to prevent the wet penetrating between the two walls.
Remove the door between Mr. Babbage's Garden and these premises -Cut away the Brickwork, make good the same in Cement, refix the door and frame and make all complete.
Cut out for doorways where shewn on plan to form a communication from the calculating room to Mr. Babbage's premises. Provide and fix 3["] fir Lintholes, make good the Jamb in cement and turn a 9" Brick Arch over the openings.
Build the necessary primings in Brick on one course of footings to carry the stone pavings, sleepers, Hearths &c. Cut chase and parqet where required to connect the old and new work -include in the Estimate 1½ Cwt of Wro^t iron for any ties that may be required and should the same or only part be required a deduction will be made from the amount of contract at the rate of 6d [per] lb.
Bed all plates and other timbers and bed and point the sash and door frames in lime and hair; point all round lead flashings in cement.
Cut out where required for joists, Girders or other timbers, and securely fix in the same with cement. Carry up all funnels (not particularly described) for water or other pipes, and execute all other work that may be required to render the Bricklayer's work complete.
Include in the estimate exclusive of all works mentioned in this Specification Three Rods of Brickwork in Mortar for extra works, and if the whole any part thereof should not be wanted, a deduction will be made from the amount of the contract at the rate of Fourteen Pounds per rod for the omission.
Slater
Cover the new roof of the Back Buildings to the Dwelling House in East Street and the Workshops with best Dutchess Slates laid to a proper guage and nailed with 2 inch copper nails two to each slate.
Examine and repair the present Roof and leave the whole of the premises perfectly water tight.
Carpenter
See the fir to be the best brown memel Rija or Dantzic, sawn true to the scantlings required.
The Deals to be yellow Petersburgh or Giffle. The oak to be of English growth. All the timber and deals to be free from dead knots, sap or shakes, and to be generally long lengths.
Bond Timber -Put two tier of oak chain Bond 4x3 in the walls of the Engine and Calculating Room throughout put tier of D^o in Ground and one pair stories of the Workshops and staircases, also two tier in the wall next entrance passage. The new walls of Dwelling House to have two tier of fir bond 4x2½ part circular the bond to continue round all the walls to be hooklapped at the joints and dovetailed at the Angles and to be connected where prevented by flues with Iron ties 2 by ½" secured with proper nails.
Plates -Put for plates 6 by 4 throughout the floors except to the calculating room Building to run round all the walls, and connected through the flues as the bond timbers scarped at the joints and hooklapped at the angles.
Linthols -Put for Linthols over all the Doors and Windows the width of and 2 feet longer than the respective openings and 5" thick. The openings of the workshops to have 6" linthols and to continue through the pier to serve as wall plates and to form a continued tie, to be pieced on the piers and secured with wrought iron bolts and screws, and the plates of the returned walls dovetailed into the same.
Floors -Put for girders under the floor of workshop one pair story 14x12 cut reversed and bolted and secured on the plate, and to have 12" bearing on the walls the Joists to run the length of the Building 9x2¼. The Joists of the new portion of the Dwelling House to be 10x2¼ properly strutted all trimmers to be 1" thicker. The Joists forming floor of Water Closet, Staircase, Landing &c. of Dwelling House to be 7 by 2½.
Roofs of Workshops} The Roofs to be constructed as
and Dwelling House} shewn in the section and of the
following Scantlings
Fir wall plates as before described 6 by 4
{Except to front wall of the Workshops in which case the Linthols are to serve as before mentioned}
Pole plates 5 x 4
Tie beams 10 x 4
Principal rafters 8 x 4
Common D^o 4 x 2¼
Strutts 4 x 3
Oak King ports in the waist 4 x 3½
Fir Purlins 4 x 4
Angle ties and Dragging pieces 10 x 4
Slips 10 x 2
Ridge 10 x 1½
Binders } In Dwelling 7 x 3
Ceiling Joists} House only 3½ x 2½
The Ceiling Joists in the Calculating room to be 5 by 2½ wedged into and secured to the Iron girders as will be directed.
The Lead flat over the staircase of Dwelling House to have fir Joists and wall plates as described for the floors. 1¼ batten hoarding close jointed with fir rings to form the [Word unreadable: Cussent?]. Put proper lead rolls and rebates for Gutters.
Frames for Skylights where shewn on drawings and provide and fix 1½ deal dovetailed frames guide raised 6" above the roof and the part round formed with [word unreadable: Ashlaring] for Plastering with ³/₄ bead level with ceiling, those over passage and inner room of Dwelling House to have 2" deal straight bar lights, hung with 3½ Bolts and Screws, lines, Pullies &c. complete. The staircase to have a metal slipped skylight to drawing fixed to the frame before described with ventilator, lines, pullies &c. complete.
The nosing round part of the Calculating and Engine Room to be formed with fir 9x5 worked on edge and well spiked to oak bricks built into the wall.
Provide two strong step ladders to ascend to the roofs with Iron hooks &c. painted four times in oil.
Put ³/₄ battens for slates 3" wide 1¼ deal Gutter boards and bearers with proper 2" drips not more than ten feet apart and current for water 2" in 10 feet. Put Cesspool head where required for rain water pipes. Form the Gutters in roof over Calculating room and Engine room, with similar boards and bearers and provide and fix all fillers and filling pieces required.
The dripping Eaves of the Buildings shewn by the Drawing to be lined with ³/₄ deal matched and beaded boarding with square fillets under slates.
The partitions to be formed as shewn in the plans to be framed and braced and of the following Scantlings
Head and bill each 4 x 3
Posts 4 x 4
Quarters 4 x 2½
Beams 4 x 3
Door Head 4 x 4
The front and back wall of the present Dwelling House and also the back wall of the new part of the same to be supported by fir girders 12 by 12 cut reversed and bolted let into the wall at each end at least one foot in oak templates 3 feet long 8 by 6 well pinned into the wall. The partition next the staircase to be also supported by a fir girder 10 by 6 and bedded in the wall in like manner. The parts of the Girders before mentioned to be eased with ³/₄ glued and beaded linings scribed to ceilings.
Provide and fix all iron ties that may be necessary to connect the old and new wood works also all proper centering turning and discharging pieces, templates, blocks, molds fillets &c. The Joists to have 6" bearing on the several walls, cut all necessary holes for Plumbers and other workmen.
The Bond Timber not to be cut out of the respective openings, nor the [del: Trimming] turning pieces and centering to be struck until ordered by the Architect.
No joists, quarters or rafters to be more than 12" apart.
The stalls of the calculating room to be battened for laths with battens 12" apart of 2¼ wide properly fixed to the walls -and bond timber which are to project ½ an Inch before the face of the Walls for the purpose of receiving the same.
Case all the pipes seen in the Dwelling House with ³/₄ deal, beaded on edge and secured to the walls, the length of pipe in Coal Cellar to be cased with Inch Oak and also well secured to the wall.
Provide all additional Timber required to complete the Dwelling House, examine and repair the roof of the same, also all Gutters and whatever may be required to complete the Carpenter's Work.
To include in the Contract 50 feet cube fir 50 feet sup^l of 1¼ and 50 ft sup^l of Inch deal [word unreadable: Frot?] both sides with all labor and nails &c. for fixing for any extra work that may be ordered and if the whole or any part thereof should not be wanting a deduction will be made from the contract at the rate of 3s/9d a foot for the fir, 8d for the inch and 9d for the 1¼" deal.
Joiner's Work
The Deal to be the best Christiana or of other deals of equal quality free from sap, dead knots, or shakes and to be well seasoned, all the outsidework to be yellow deal.
Floors -The floor of the Workshop to be 1½ rough yellow deal edges shot and laid folding -the Calculating room to have a similar floor wrought and laid with straight joints in oak joists, and sleepers 5 by 3. The floors of the back buildings of Dwelling House, Water Closet &c. to be inch white Deal wrought and laid straight joint -make good all others that may have been affected by the alterations or from any other means so as to complete the whole in every respect. Put mitred and glued boards round fireplaces in those rooms described to have wrought floors.
Put inch deal square skirting 7" high to the dwelling house, Passage, Water Closet, and Room over the present Water Closet in Garden plugged to walls, and Inch deal Form skirting 9" wide to the calculating room with inch narrow grounds and ³/₄ deal plinths, scribed to floors - make good all other skirtings throughout the Dwelling House.
Doors -The Internal doors of the Calculating and Engine Rooms to be 2" deal 4 panel molded both sides hung with 4" Butts and forms and to have each a 7" [word unreadable: bent/bolt?] mortice lock (Town made) the linings to be 1½ dble rebated, Beaded and feather tongued Inch deal framed G^d and OG molding round. the external Doors to be 2 inch B^d flush and molded inside as other Doors and each to have a draw back lock with 2 6" rod bolts and chain and run complete with fir Doorcases 5x4 properly rebated and beaded and stubbed into stone steps. The Door in passage next Mr Babbage's to have the upper panels filled in with Glass and the remainder of the Doors throughout to be 2 inch 4(square) Panel 1 ¼ rebated and beaded Jamb linings Inch framed G^d and OG molding both sides, hung with 3 Inch Butts and fitted with 7" knob locks except Water Closet and Coal Cellar, the latter to have Norfolk latches and lock, and the Water Closet a pulpit latch and 5 in rod bolt complete. The privy in yard and Coal Cellar in Dwelling to have a fir solid frame 4x4 stubbed into York Stone Step 1½ deal bead butt and square door hung with 3 inch butts and screws, Norfolk latch, ³/₄ beaded linings in the inside tongued to frame and to project to stop plastering. The linings exceeding 9" in width to be feather tongued those to the external doors to be of inch deal glued and beaded with grounds to correspond with the Doors adjoining the open yard next privy to have a 2" B^d flush both sides Door hung with 3" butts to a proper doorcase 5x4 stubbed into York Stone Step and to have a Norfolk Latch. The present Door in the fence wall next Mr Babbage's Garden to be removed and rehung where shewn opposite the Carriage entrance, repair and make good the same, also the lock.
The Entrance Door to Workshops to be 2½ deal framed bottom panels and diminished stiles filled in with Iron sashes and hung folding with 3 pair 4 Butts and screws stock lock and 1 18" and 1 12" strong barrel bolt complete. Fir solid frame 7 by 5 stubbed into stone steps with beaded stops and linings inside as described for Windows. The carriage entrance in East Street and that between the Dwelling House and Yard to have 2½ inch framed and braced gates filled in with 1¼ Battens in narrow widths matched and beaded hung with Collinges patent hinges. Put a wrought Iron locking bar 3 x ½ worked on centres with Iron bolts, Lock and Staples complete also an Iron Drag and Iron stays and hooks to keep them back when open, and to have Oak hanging Posts 8x6 rebated beaded and properly secured to the walls let into the ground 5ft. Put Oak spurs 5 feet long and 3 to each Gate 6x6 molded cap on piers of Gates.
The opening from Workshops to yard next to the mens privy to have a fir solid frame 5x4 2" deal ledged and braced door filled in with Inch deal matched bottoms 4' wide, Norfolk latch 10" stock lock complete ³/₄ linings round as to windows. The Gates in East Street to be hung to Posts 12x8 framed into Bressemmer and stubbed into 6[' or " ?] stone step 2 ft square. The entrance in East Street to have 2¼ deal 4 panel Door molded and square with metal fanlight and frame over and molded Transom proper doorcase 6x4 and 4' butt hinges 1¼ beaded lining round, a good 10" Drawback lock brass mounted and 2 10" bolts and chain and runner. The opening at the end of Passage next the yard to be fitted in with iron bars 3/4 diam and 4" apart with top and bottom horizontal rails 2 x ½ properly fixed to an Oak frame 4 x4.
The whole of the Passage to be lined 5ft high with 1¼ matched and beaded boarded in width with beaded capping to girt 4 inches narrow Grounds, plugged to walls and cement skirting. The staircase from the ground floor to one pair of Dwelling House to have 1¼ deal steps and risers with molded nosings housed into 1¼ molded wall and string board with 2" deal turned newels and 2¼ Honduras mahogany molded handrail with turned caps over newels, Inch deal bar ballusters, similar handrail on landing with molded nosings ³/₄ deal aprons round. The present staircase of Dwelling House from the one to two pair to be altered as shewn on the Drawing and all additional steps, handrails, balluster &c. required to be provided and the whole made complete. The steps in the Workshop to be made of 1½ deal rough with similar string and wall board, strong newel at bottom 4x4 champfered edges and fixed into 3" York Stone Paving 2 ft Square. 2½ deal rounded handrail with and inch square wro^t iron ballusters at every second step. Include in the Estimate £2 for a light step ladder to ascend from the Ground floor into the small room above the present Water Closet and Passage &c. near the Calculating room.
Sashes and Frames -The workshops and the window opening[s] in the Calculating Room to have Fir proper frames 5x4 with cut stops part fixed on sash and part on frame, Oak sunk Cill 5x4 with Iron sashes (see Smith) 1¼ deal Window boards on bearers and ³/₄ deal linings round frame 4" wide scribed to wall with champfered edge.
The opening in the Kitchen and water closet of Dwelling and the room over tool house to have deal cased frames 3' Oak sunk Cills 1½ [word unreadable: roolo?] sashes single hung with the best white line and brass pullies brass sash fastening complete 1¼ window boards and beams with rounded nosings on bearers 3x2 and Inch beaded and glued linings round to project to stop plastering, and tongd to frame.
The Pantry to be divided from the Kitchen by a Partition formed with deal proper cased mullions to receive 1½ deal [word unreadable: rools?] sashes single hung with the best white lines and brass pullies, sash fastening complete. Inch ½ deal rounded window boards at 3ft from floor and the space underneath to be enclosed with 1½ deal square framing fixed to the Mullions before mentioned. The top of the sashes to be 7ft from the floor, and the span above to be filled in with Quarters 4x2 for plastering. The door to be of 2" deal and framed to correspond with the framing adjoining, hung with 3½ butts and screws with 7" Iron round 3 bolts lock complete.
The Turret lights over the Calculating and Engine room to be constructed with 4" Oak sunk and weathered cill 9" wide raised above the lead work with Oak curb 6" by 6" secured to the Iron flanges with ⁵/₈ wro^t Iron straps and bolts at 3ft apart on the average. The Cill to be mitred at the angles bolted together and prepared to receive Fir solid mullions and head 5 by 5 prepared to receive Iron sashes (see Smith) with headed stops as described for the workshops. The Roofs of Turrets to have for Joists 7 x 2½ cut with proper fall, boarded as described for other flats and Inch deal faced and OG molding on both sides. The Turrets to have deal molding cornice round level with Oak cill with sunk facias and ³/₄ deal beaded linings level with ceiling, as shewn by the detail section.
Examine repair and rehang where necessary all the sashes and shutters throughout the Dwelling House, put new fastenings, nobs and furniture where required and leave all complete: relacquer the present lock and all other brasswork in the one pair Story.
Water Closet -in the Dwelling House to be fitted up with deal seat and riser -Inch deal beaded hinging stile and inch chamfered flap hung with 3" Butts and Screws -Inch deal square skirting round with deal cradle shelf complete.
The workmens privy to have 1½ deal seat and riser with hole cut [word unreadable: ledged?] cover with turned nob. Inch deal square skirting round and holes cut for Plumbers.
Provide and fix where directed in the roof of the additional [building next to the Dwelling House a 2" deal dovetailed cistern to contain 300 Gallons of Water on strong beams, similar cistern to be fixed in Roof of Workshops and also in Engine Room. The water closet in Dwelling House to have a 1½ deal dovetailed cistern over to contain 50 Gallons of Water with manhole flap and fastening complete.
Fittings -The Kitchen to have 2" deal dresser top of the size shewn on Plan, glewed blocked and the ends clamped and rounded fixed on 2" deal framed legs and rails with middle rail for 4 1¼ deal drawer fronts and ³/₄ dovetailed rims and bottoms. Oak slips and 1½ deal rebated runners dovetailed into 1½ back board and facing in front ends to correspond the drawers to have a good lock and 2 nobs to each. Inch deal Pot board on bearers and ³/₄ matched and beaded backlining up to ceiling deal facia and molding round top 1½ deal cut standards with 4 tier of Inch shelves fixed to the boarding.
The Sink to have 2 Inch deal framed legs and rails, and 1½ dovetailed sink 8" deep Inch deal Potboard raised 3" above floor and ³/₄ skirting, the underside to be enclosed with 1½ deal square doors hung folding with 3½ Butts and Screws 6" rod bolt and brass turn buckle complete. Inch deal beaded hanging stiles on top with Inch deal [word unreadable: clampled?] flap hung with 3 Butts and screws with ½" square skirting round 7" high.
The Pantry to have a dresser top of 1½ deal 18" wide on 1½" frame legs and rails with strong dovetailed bearers complete.
Include in the Estimate exclusive of all other fittings 20ft sup^l of 1¼ deal shelves and brackets, to be fixed where directed.
Plumber and Copper Smiths Work
The flats throughout to be laid with milled lead 8lb to the foot Sup^l to turn up against the walls 6 inches, and dressed to form Gutters, as shewn and also to dress over the nosing round part of the Calculating and Engine Building the rolls to be formed by the laps in the lead and the whole properly laid, and dressed.
The Turret lights and Gutters, as well as those behind the Chimnies, and Skylights to be laid with milled lead 7lb to the foot sup^l to turn up against the walls 6" and under the slates 10" with proper drips, rolls cesspools &c. complete
Put 5lb milled lead flashing 6 inches wide round all the parapet walls, and where required, those on the side of the Privy Roof to be slipped flashings 12" wide and built into the wall. The flashings round Skylights and Turret lights to be 12" wide, properly nailed to the woodwork, and the nails painted with white lead. The Water to be conveyed from the Roofs by 3½ Cast Iron pipes with proper hoppers and knees, to dip into the drains, and properly connected together and secured to the Brickwork.
Line the Cistern with 8lb cast lead bottoms and 6lb sides to turn over the edge of the cistern 2 inches and nailed down, and soldered at the Angles.
Lay on the water from the main with 2" strong lead service pipe with 1¼ branch pipes to serve the cisterns, with Ball cock complete to each.
The water closet cistern to be supplied from the nearest cistern with proper Service Waste, and other Pipes and Ball Cock complete.
The Water Closet to be fitted up with the patent valve aparatus with white ware basin complete, supplied with water from the Cistern above with all the necessary service Pipes, traps, bosses &c. complete. The soil pipe to be 4" diameter made of milled lead 7lb to the foot supl with proper P traps to dip into the drains with all knees &c. that may be found necessary.
The sink in Kitchen to be supplied from the large Cistern in roof with inch service pipe with brass cock complete. Similar cock and pipe to supply pails in yard and Engine House, from the nearest cistern.
The Mens Privy to have a common ware pan with trap at bottom to dip into drain, supplied with water from the nearest cistern with brass cock complete.
The whole of the Gutters, lead of flashings &c. of the Dwelling House to be carefully examined new flashing put where required and the whole repaired and made perfectly water tight.
The Eaves of Turret lights and the whole of those of the Buildings, not shewn to have lead Gutters, to have 4" open Copper Gutters, properly soldered at the Joints and securely fixed with wrought iron brackets the water to be conducted to the drains with water pipes as before described.
Mason's Work
Provide and fix all stonework before mentioned; also all other stone that may be required to complete the work.
All the external and Cellar doorways to have solid York Stone Steps 12x7 properly set and prepared to receive the doorcases with chamfered Edges.
The Entrance door, and Carriage Gateway in East Street, as well as the opening at the opposite end of Building to have similar stone steps, the steps in Passage to be also of solid York Stone 12x7 each in one length pinned into the wall 3 inches and firmly bedded on the Ground.
Pave the whole of the Engine House with 3" York Stone in large regular Courses bedded on brick walls and flushes up with cement.
The Passage from East Street and that from Calculating Room to the adjoining premises, as well as the Mens Privy to be paved with 2½ York Stone in large regular courses on dry rubbish bedded in Mortar and well flushed round the Walls with Cement.
Put 3["] rubbed York Cill to all the Windows to project 1½ before the brickwork and to extend 2 inches at each end and beyond the opening, laid weathering and throated.
Cope all the Party Fence Walls of those of the Building with 3" York Stone 4" wider than the Brickwork, properly weathered set and jointed in cement, cramped and run with lead.
Include in the Estimate £3-10-0 for a stone urinary laying on the water cock and drain complete to be fixed in the small yard next the Mens Privy. Examine and repair all the other Stonework throughout the premises and leave all clean and complete at the finishing.
The Calculating Room to have a Portland box Chimney piece of the value of £5 with hearth stone complete but exclusive of fixing. The Kitchen to have 1½ Portland Jambs mantle and shelf 7" wide, the latter with rounded corners, and pinned into the wall at least 2 inches - 2½ rubbed York hearth stone and inner hearth complete.
The Inner Room next the Pantry to have a Chimney Piece of the value of £2-10-0 including hearth Stone but exclusive of fixing.
The Chimney Pieces to be properly cramped and fixed in the most suitable manner.
Provide and fix 6" York Stone Caps to piers of Inside Gates 1'-10" Square properly weathered and set in Cement.
Put Portland Stone Plinths under the Pilasters in front next East Street 1ft 6["] high the width shewn 4" in thickness properly secured to the Brickwork.
Form the skew backs for Arches forming the roof of Calculating and Engine House with solid York Stone Steps cramped together and run with lead and splayed to receive the Brickwork and also for the Iron tie rods hereafter described.
Plasterers Work
The ceiling in the calculating Room those in the Dwelling House also of the entrance from East Street to be Lathed, Plastered, floated set and twice whitened or coloured.
The walls of the Calculating Room to be lathed with double fir Laths, plastered, floated set and twice colored. The Walls of the Engine room, the ceiling and also the Walls in the Dwelling House to be rendered set and twice colored or whitened.
Make good all other Plastering damaged throughout the Dwelling House and twice whiten the ceilings and twice color the Attics and such of the old walls as are at present done.
The Cornice Pilaster Blocking &c. of Entrance front from East Street to be stuccoed with Roman Cement jointed and twice colored the cornice to be executed according to the detailed drawings and finished in like manner.
The Girders towards East Street and the Yard to be mathematically tiled, and cemented, that towards the Yard to correspond with that in East Street.
The skirting on each side of the entrance Passage, and that in the Engine room to be executed in Roman Cement one inch thick 9" high and finished for Paint.
The splays at bottom of recesses in front of the Calculating and Engine House to be stuccoed with Cement and colored.
Smith and Ironmongery
Provide all Ironwork mentioned in the aforesaid specification, also all fastenings and other work that may be required to complete the same.
Repair and oil the Locks, Latches, bolts, hinges &c. thoughout the Dwelling House and the Iron railing Gates &c. towards East Street.
Provide ⁵/₈ Wro^t Iron Screw Bolts at the end of principal rafters; and ³/₄ wro^t iron King bolts with similar bolts for slips Angle ties &c.
The cast iron springers to be executed according to the detail drawings, with proper flanges and stubbs at end, let into York Stone templates and run with lead.
Provide and fix where shewn on plan in roof of Calculating and Engine House Wro^t Iron connecting rod 1 ³/₄ diam^r to go through the several springers and connected to the stone work with proper screw bolts &c..
The whole of the Wro^t work to be worked out of Swedish Iron and in the best manner and the last work executed in London approved in the presence and to the satisfaction of the Architect before it is carried to the Works.
All the sashs in the Workshops &c. and the Turret lights to have wro^t Iron sashes the bars to be worked as [7e/ye/the?] Sketch in the margin with strong wro^t Iron frames hung on Centres with Quadrant fastenings, lines, pullies &c. complete.
Provide and fix a large size Bell in Yard, with Pull brass nob and dish in East Street, similar pull with common size Bell to Kitchen, and a pull with leaver handle from the front room one pair to kitchen. Repair all other Bells and pulls which at present exist, and leave all complete.
Glazier
All the Sashes Skylights Turret lights and sash doors to be glazed with the second best Newcastle Crown Glass well puttied and back puttied.
The laps in the Skylights are not to exceed a ¼ of an inch, and to be made perfectly water tight.
The whole of the Glass to the old and new work to be cleaned and left perfect at the completion of the Job.
Painter
All the new wood and Iron work usually painted to be done 4 times in Oil of such common colors as may be approved by the Architect.
The work to be previously knotted and rubbed down and the old work prepared to receive two coats of paint of such common colors as may be approved.
The front room one pair Dwelling House to be flatted in addition to the above number of Coats of Paint.
All the Cast and Wro^t Iron, Girders &c. to be painted 3 times in oil -previous to their being fixed. the Railing in front towards East Street to be finished in Visible Green.
Paper Hanger
The Room and Closet on the one pair floor Dwelling House to be papered with paper of the value of 8 pence per yard and border of the value of 2d pr yard.
The two pair story to be papered with paper at 6d pr yard and border at 1d pr yard.
Repair all the papering which is to be colored as stated in the Plasterers Work.
(signed) William and Lewis Cubitt

Conditions of Contract
The whole of the works to be done and completed according to the fullest intention and spirit of the drawings and specification with the best well seasoned materials of their respective sorts and in the most substantial and workmanlike manner under the direction and to the satisfaction of the Architect.
The contractor is to find and provide at his own expense all manner of Materials, Tools, Labor, Shoring, Scaffolding, Molds, Carriage and every description of implement necessary for the due performance of the Works, he is also to defray all fees to District Surveyor, Surveyor of Sewers, Pavements and all other expenses attending the opening of the Sewers &c..
Bad or improper works to be immediately removed or altered on the requisition of the Architect or Clerk of the Works, and all bad or improper materials to be carried away, and in case the Contractor shall refuse or neglect to perform any part of the said several works in such manner and with such good and substantial materials as are hereinbefore described, or in case the bad or improper works are not immediately altered by the Contractor, or the works do not proceed with proper dispatch, in order that they may be completed within the hereinafter specified time, the architect is hereby empowered after having given 48 hours notice thereof in writing left at the usual place of abode of the Said Contractor to employ or engage any other person or persons to perform and execute and to find and provide materials for the same and the cost and charges thereof shall be paid or allowed by the Contractor or retained and deducted out of monies that there may be due or hereafter become due to the said Contractor.
No Workmen or Unskilful Workmen shall be employed the Architect to have full liberty to discharge from the works and premises any man or men for incompetency or gross misconduct and the Contractor is not to replace or employ him or them again on these Works without the approbation of the Architect first had and obtained in writing.
Any alterations in the works, which may be required is to be completed within the part of the Contractor and is not to vitiate or make void this Contract but the value of the same whether in addition to or deduction from the Sum Contracted for, is to be measured and valued by two respectable Surveyors or their Umpire appointed in the usual way and the said Valuation to be delivered to the Architect within 21 days after the measurement has been completed.
No allowance will be made for additional Works or alterations unless the same shall have been ordered in writing by the Architect and should any alteration or addition be made in day account, the said day account must be delivered at the office of the said Architect on the Tuesday morning next ensuing after such day work may have been done signed by the Clerk of the Works and no account unless so signed and delivered will be admitted at the making up of the accounts.
It is to be understood by persons offering Tenders that no charge is to be made for Estimating the works from the Drawings and Specification.
The works to be left clean and perfect at the finish of the Job and all breakage or damage which may have occurred to be made good at the Contractor's expense and all damage or alterations done to the adjoining premises occasioned by the execution of these works to be made good in every respect.
The whole of the Roofs to be completely covered in the pipes fixed and water conveyances made within ----- months from the date of the Contract and the whole of the works to be completed on or before the ----- day of -----.
Should the Contractor fail to complete the works within the times above specified he is to forfeit and pay the Sum of £20 pr week for every week the works may remain unfinished after those periods; but in case of extra work or alterations a proportional extension of time will be allowed which extension is to be settled by the Architect.
The Contractor is to insure the Building from fire in the protector office in the joint manner of -----------------------for the time being and the said Contractor to the amount of two thirds of the Contract and which Insurance is to be contained until the premises are certified by the Architect to be completed as the Contractor will be considered accountable for all loss or damage done to the Premises until that time.
Persons offering Tenders must deliver them at the Office of Works &c. Little Scotland Yard on or before the ----- November ensuing at ----- o'clock, after which period no sender will be noticed. Each sender to be endorsed on the outside "Sender for a Building to contain Mr. Babbage's Calculating Engine &c."
The amount of Contract to be paid as follows Vizt
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(signed) William and Lewis Cubitt