38I. - This contractor is to furnish all materials, including water, and all labor, scaffolding and utensils necessary to complete the brickwork indicated by red color on the plans and sections, and as shown by the elevations and as herein specified.

Face Work. - Pressed Brick. - The exposed surfaces of the building (on south -and east elevations), including the chimneys, to be faced with (St. Louis) pressed brick like the sample in architect's office; all to have good sharp edges and to be of uniform size and color.

Moulded Brick. - Furnish all moulded brick shown on elevation drawings and as indicated by numbers (which refer to----------'s catalogue). These brick to be as near the color of the pressed brick as can be obtained, and laid to give as even lines as possible. Furnish, octagon brick for the external angles of bays and circular brick of proper curvature for the circular bay (or tower).

Stock Brick. - The exposed surfaces of the brickwork (on west elevation) to be of best quality dark red stock brick, with good sharp corners and square edges.

Common Brick. - The balance of the exposed brickwork to be of selected, even-colored common brick, as nearly uniform in size and color as can be obtained, and carefully culled.

All face brick to be laid in the most skillful manner (from an outside scaffold) in colored mortar, as specified elsewhere. Each brick to be dipped in water before laying; each edge of the brick and down the middle to be butted, and all vertical joints to be filled solid from front to back. The brick to be laid with plumb bond and bonded to the backing with a diagonal header to every brick in every (fifth) course. [Or bonded with the Morse tie, one tie laid over every brick in every fourth course.] In piers only solid headers to be used.

All courses to be gauged true, and all joints to be rodded (or struck with a bead jointer. See Section 237).

The returns of pressed brickwork must be carefully dovetailed into the common brickwork or bonded by solid headers.

Ornamental Work. - All brick cornices, belt courses, arches, chimney tops and other ornamental brick features of the building must be laid up in the most artistic and substantial manner, according to the scale and detail drawings. All arches to be bonded and the bricks cut and rubbed so that each joint will radiate from the centre. (Arch brick are often specified for first-class work in large cities.)

Common Brickwork. - All other brickwork to be laid up with good hard-burned (the best merchantable) common bricks, acceptable to the architect, in mortar, as specified elsewhere.

All brick shall be well wet, except in freezing weather, before being laid.

Each brick shall be laid with a shove joint in a full bed of mortar, all interstices being thoroughly filled, and where the brick comes in connection with anchors each one shall be brought home to do all the work possible.

Up to and including the fourth story every fourth course shall consist of a heading course of whole brick, extending through the entire thickness of the wall or backing; above the fourth story every sixth course shall be a heading course.

All mortar joints, where the wall is not to be plastered, shall be neatly struck, as is customary for first-class trowel work. All courses of brickwork shall be kept level, and the bonds shall be accurately preserved. When necessary to bring any courses to the required height, clipped courses shall be formed (or the bricks laid on edge), as in no case shall any mortar joints finish more than inch thick. All brickwork shall be laid to the lines, and all walls and piers must be built plumb, true and square. Walls to be carefully leveled for floor joist.

All cut stone shall be backed up as fast as the superintendent shall direct, and the brick mason shall build in all anchors that may be furnished by the contractor for the cut stonework, or by the carpenter or iron contractor.

All partition walls to be tied to the outside walls by iron anchors (furnished by this contractor), 3/16 X 1 inches in section and (3 feet 6 inches) long, built into the walls every (4) feet in height.

When openings or slots are indicated in the brick walls, the size and position of the same shall be such as the superintendent shall direct, unless otherwise shown. This contractor shall leave openings to receive all registers that may be required in connection with the heating or ventilating system.

Firmly bed and fill in around all timbers, point around all window frames, inside all staff beads and window sills, and wherever required, and bed all wall plates in mortar on the brickwork.

Protection. - This contractor shall carefully protect his work by all necessary bracing, and by covering up all walls at night or in bad weather. (He shall protect all mason work from frosts by covering with manure or other materials satisfactory to the superintendent.

The top of all walls injured by the weather shall be taken down by this contractor at his expense before recommencing the work.

Hollow Fire Clay Brick (for buildings of skeleton construction). - All brick used in connection with the spandrels above the first story on all elevations, together with all backing required in connection with the stone or terra cotta work above the (sixth) story floor beams, shall consist of first quality hard-burned fire clay, hollow brick, equal in quality to sample in the architect's office. Each brick shall be laid with a shove joint and the work well bonded. The inside surface of the wall to be left smooth, true and ready for plastering.

Mortar. - Cement Mortar. - All brickwork below the grade line and the last five courses of chimneys and parapet walls shall be laid in mortar composed of 1 part fresh (Rosendale*) cement and (2) parts clean, sharp bank sand, properly screened, mixed with sufficient water to render the mixture of proper consistency. Care must be taken to thoroughly mix the sand and cement dry, in the proportions specified, before adding the water. The mortar shall be mixed in small quantities only, and in no case shall mortar that has commenced to set or stood over night be used. (See Section 128.)

[In Colorado, and possibly in some other localities, a gray hydraulic lime is obtained, which answers about as well as cement for foundation walls.]

Lime and Cement Mortar. - All common brickwork in (first and second) stories to be laid in mortar composed of (3) parts of lime mortar, having a large proportion of sand and 1 part of fresh (Utica) cement. The lime mortar to be worked at least two days before the cement is added, and only small quantities of cement to be mixed at a time (see Section 131.)

Lime Mortar. - The balance of the common brickwork to be laid in mortar composed of fresh-burned (Rockland) (Missouri) lime and clean, sharp sand, well screened. (No loam to be used.) The lime and sand to be mixed to make a rich mortar, satisfactory to the architect. Lime that has commenced to slake shall not be used.

* Or any of the cements described in Section III.

Colored Mortar. - All face brick to be laid in mortar composed of lime putty and finely-sifted sand, colored with (Pecoria) or (Peerless) mortar stains; colors to be selected by the architect.

Grouting. - All brick footings and the piers in basement must be grouted in every course and flushed full with cement mortar, as specified above.

Cement Plastering. - The outside of all brick walls that come in contact with the earth shall be smooth plastered by this contractor, from bottom of footings to grade line, with (Atlas) Portland cement mortar, mixed in the proportion of 1 to 2, and of an average thickness of inch.

Plaster the top of all projecting brick belt courses, and the tops of fire walls, where not otherwise protected, with the same kind of mortar, being careful to make a neat job. (See Section 240.)

Relieving Arches. - Turn three rowlock relieving arches over all door and window openings behind the face arch or lintel. These arches to have a brick core, and to spring from beyond the ends of wood lintel.

Chimneys. - Build all chimneys and vent flues as shown by drawings, and top out as shown on elevation drawings.

All withes to be 4 inches thick, well bonded to the walls, and the flues to be carried up separately to the top. Plaster the inside of all flues (unless provided with flue lining) from bottom to top with (Portland cement) mortar, and plaster the outside of the flues where they pass through the floors.

Slides (slanting boards) must be put in each flue at the bottom, with an opening above to carry out the mortar droppings, and on completion of the chimneys the flues must be thoroughly cleaned out and the openings bricked up.

All brick chimney breasts to be built plumb, straight and true, and all corners square.

Build rough openings for fireplaces (with x2-inch iron arch bars, turned up 2 inches at the ends) and turn trimmer arches to the same 2 feet wide on wooden centres furnished and set by the carpenter.

Build the ash pits under grates, as shown by plans, and provide and set a cast iron ash pit door and frame in each pit where shown or directed.

Flue Lining. - Furnish and set in (the range and furnace flues) 8x12-inch fire clay flue linings to start (2 feet) below the thimble and continued to the top of flue. The lining to be set in rich lime (cement) mortar, with joints scraped clean on the inside.

Thimbles. - Provide and set in all flues, except grate flues, (sheet) iron thimbles, 8 inches in diameter in furnace flue and 6 inches elsewhere, to be set 2 feet below the ceiling unless otherwise directed. Furnish bright tin stoppers for all thimbles except for (range and furnace.)

Cold Air Duct. - Excavate for and build the cold air duct and foundation for furnace as shown by drawings of hard-burned brick, laid in (Rosendale) cement mortar, and plastered smooth on the inside; also plaster the bottom of duct and furnace pit with cement mortar, on a 2-inch bed of sand. Cover the top of the air duct with (2) inch flagstone with joints neatly fitted and the edges cut true and square. The flagging to be furnished by (this) contractor.

Fire Walls. - This contractor shall furnish and set, in Portland cement, salt-glazed tile copings on all fire walls not covered by stone or metal copings. The copings are to be 2 inches wider than the walls and to have lapped joints.

Ventilators. - Leave ventilating openings in the foundation walls and between roof and ceiling joist, where shown on drawings, and put cast iron gratings in the openings.

Cutting and Fitting. - This contractor shall do promptly and at the time the superintendent so directs, all cutting and fitting that may be required in connection with the mason work by other contractors to make their work come right, and shall make good after them.

Setting Ironwork. - This contractor is to set all iron plates resting on the brickwork, and all steel beams supporting brick walls; also all iron lintels, tie-rods and skewbacks used in connection with brick arches or over openings.

All such work will be furnished at the sidewalk by another contractor, and this contractor shall set the same in such position and at such height as the superintendent shall direct. All plates to be solidly bedded, true and level, in 1 to 2 fresh (Atlas) Portland cement mortar; the brickwork to be brought to such a height that the bedding joint shall not exceed inch.

[Where there is but little ironwork it is sometimes desirable to specify that the brick mason shall assist the carpenter in setting iron columns and steel beams. Large contracts for iron and steel work are generally erected by a special contractor. All ironwork coming in connection with the stonework should be set by the same contractor that sets the stonework.]

Setting Cut Stone. - The contractor for the stonework will set all belt courses, stone arches, coping, steps and other stone where fitting may be required, but this contractor shall set all single caps, sills and bond stones, the stone being delivered at the sidewalk. All such pieces of stone to be set in the best manner, in mortar as specified for the face brick. Sills to be bedded only at the ends.

Setting Terra Cotta. - This contractor shall set all terra cotta work, indicated by pink color on the elevation drawings, in the best manner, in the same kind of mortar as is specified for the pressed brickwork. All terra cotta work that does not balance on the wall, or where indicated on the drawings, shall be securely tied to the backing by wrought iron anchors, of approved pattern, thoroughly bedded in cement mortar. (See also specifications for terra cotta work.)

Cleaning Down and Pointing. - On completion of the brickwork this contractor is to thoroughly clean the face brick, using dilute muriatic acid and water, applied with a scrubbing brush. Care must be taken not to let the acid run over the cut stone. (Some stones are injured by acid and must be cleaned with water only.) While cleaning down this contractor is to point up under all sills, and wherever required to leave the wall in perfect condition.

[Where there is little cut stonework the cleaning and pointing of it may also be included in this specification.]

Outhouses - [Customary only in Western cities.] - Build the outhouses and ash pit on the rear of the lot, as shown by plans, of hard-burned brick. Arch over the ash pit and give a heavy coat of (Portland) cement mortar. Leave an opening in the top for putting in ashes and provide an iron ring and cover for same. Furnish and set on the alley side at the grade a cast iron ash pit door and frame.

Rubbish. - Clean out all boards, plank, mortar, brick and other rubbish caused by the brick masons, and remove from the building and grounds, on completion of the brickwork or when directed by the superintendent.*

Brick Paving (for yards.) - Pave the yards and areas where so indicated on plans with good hard (vitrified) paving bricks, sound and square, laid flat, herring-bone fashion, on a bed of sand from (4) to (6) inches deep.

[The necessary depth of sand varies with the quality of the soil, a stiff clay requiring the most sand; on such soils a bed of furnace cinders, etc., may be used to advantage before the sand is put down.]

After the bricks are laid and graded (which should be about 1 inch in 10 feet) to drain the water to the grade or to its proper outlet, the entire surface must be covered with sand, which must be swept over the bricks until the joints are thoroughly filled.

[For a better pavement the joints should be grouted in liquid cement mortar and the sand spread over afterward. Where extra thickness of wearing surface is required the bricks may be laid on edge and grouted or covered with sand as above.]

Where brick gutters are shown the bricks are to be laid lengthways and the joints grouted in cement mortar.

(For requirements for paving brick for streets and driveways, see Section 226.)