MODEL FOR SPECIFICATIONS.

Mason's specification for school-house to be built for the inhabitants of the town of X on their land on Y street.

Excavation.-Excavate the cellar to a uniform depth of 33 feet below the highest point of the ground which the building covers, making the excavation 8 inches wider all around than the outside of foundation walls, as marked on plan; excavate trenches for all walls and piers 2 feet below cellar bottom; excavate trench 4 feet deep and 100 feet long for drain pipe; and excavate for setting posts of porch 4 feet deep, and for cesspool as shown on plan. Separate the loam and stack by itself where directed, and dump the other earth from the excavations wherever directed within 200 feet of the building. Excavate for bulkhead · to cellar. Refill about cellar walls with gravel. Refill around cesspool and posts. Level and grade neatly about the building as directed, and put the loam on top. Clear away and remove all rubbish and leave the ground in good order.

Blasting. If any blasting should be necessary for excavating the cellar as above specified, seven cents (more or less) per cubic foot will be allowed by the town for blasting and removing the stone, and all the stone so removed which may be suitable shall be used in building the cellar walls, and for all stone so taken from the cellar and used in the walls the town shall be credited at the rate of seven cents (more or less) per cubic foot.

Drain pipe.- Furnish and lay in the best manner from cellar wall to cesspool 100 feet of first quality (Portland, Akron Scotch) 6-inch glazed earthenware drain pipe, to be jointed with clear fresh Portland cement and the joints scraped smooth inside as laid; all uniformly graded. Leave the line of pipes open until inspected and approved, then refill the trench with earth, the last 12 inches of filling to be loam.

Foundations.-All the lime used in the mason work to be No. 1 extra Rockland, Rockport, or Thomaston (Canaan, Glen's Falls, &c.), and all cement to be fresh Rosendale (Akron, Louisville, Portland) of the brand.

Walls.- Furnish all materials and build cellar wall as follows: Put first into the trenches 18 inches in depth of quarry chips or broken stone, dry, and upon this build the walls 18 inches thick in ledge stone laid in mortar made with lime and cement in equal parts and clean sharp sand in proper proportion; the wall to be well bonded, the joints filled with mortar, and the whole trowel pointed outside and inside the whole height. Set the best face of the stones outside, both above and below ground. Set footing stones for piers and chimneys. Build bulkhead walls of stone in cement mortar, neatly faced. Bed the sill of the building in cement mortar, and bed and point up around frames of basement windows.

Cesspool.-Build a tight brick circular cesspool 5 feet inside diameter

and 5 feet deep below spring of arch, the walls to be 8 inches thick, of hard brick in cement. Dome over the top 4 inches thick, and lay the bottom 4 inches thick, all of hard brick in cement. Leave manhole 20 inches in diameter, and cover with a 3-inch bluestone 2 feet square, with hole cut in the top and iron grating. Build in the overflow and inlet pipes. Carry overflow to small dry well.

Brick-work: Piers.-Build (four) piers in cellar, 12 by 12 inches, to under side of girders, of hard brick in mortar made with equal parts of lime and cement.

Chimneys. Build chimneys, as shown on drawings, of hard brick in lime mortar to under side of roof boarding, above roof to be selected brick in mortar made with one part cement to two parts clean sharp sand (no lime), and the four upper courses to be laid in clear cement; all withs to be 4 inches thick, bonded into the walls, and all flues carried up separately to the top. Plaster every flue inside, brushing the mortar smooth with a wet brush, and the outside of the chimney to under side of roof boarding.

Provide and set iron thimbles and cover for stove pipe (furnace) and two 20 by 30 Creamer's ventilating registers, black japanned, with cords, &c., complete.

Lay three courses of rough brick in mortar between the beams on top of sill.

Plastering: Cellar ceiling.- Lath and plaster the cellar ceiling one coat, smoothed.

Back plastering.-Back plaster the outside walls from sill to under side of plate, between the studs; the laths to be nailed to vertical strips or laths put on the inside of the boarding.

Two coat work.-Lath and plaster two coats in the best manner all other walls and ceilings except in woodshed, carrying the plaster to the floor everywhere. Laths to be seasoned pine or spruce, laid 3 inch open, and breaking joint every six courses and over all door and window heads. The first coat of plaster to be of extra (Rockland) lime and clean, washed, sharp sand, and well mixed with long hair. The lime is to be slaked separately at least seven days before mixing with the sand and hair. The first coat to be well trowelled, straightened with a straight edge, and made perfectly true, and brought well up to the grounds. The skim coat is to be made with extra (Rockland) lime, slaked at least seven days before mixing, and washed (beach) sand, and well floated.

Point up with lime and hair mortar around window and door frames; patch up and repair all the plastering at the completion of the building, and leave all perfect.

Carpenter's specifications, &c.: Scantlings.-Sill 6 by 6 (creosoted by Hayford Wood Preserving Company), well painted on the under side. Plate, 4 by 4; corner posts, 4 by 6; window studs, 3 by 4; door studs, 4 by 4; all other studding, 2 by 4; 16 inches on centres. Braces, 13 by 4, gained in on the outside of the studding. There will be one 6 by 10

girder through the middle of the building, and the floor beams will be all 2 by 8 (2 by 9), (2 by 10), 16 inches on centres, notched down 4 inches on the sill and 1 inch on the girder. Rafters 2 by 8 (2 by 9), (2 by 10), 20 inches on centres, every pair of rafters to be tied at the foot with 14-inch plank at least 8 inches wide. (If space is gained overhead by putting the ties part way up the rafters these must be 2 by 10 or 2 by 12.) Hip and valley rafters 2 by 12 (3 by 12), (3 by 14). All rafters to be notched on the plate and spiked. Bridge the floor with two rows of double her ringbone crossbridging.

Cornice.-Form cornice as shown on drawings, with gutter all around the building, and two (four) 3-inch patent expanding galvanized iron conductors where directed, with 2-inch lead goosenecks and quarterturn at foot of each. Joints in gutters to be made tight with sheet lead.

Roofing. Cover the roof with hemlock (spruce) (pine) boarding, planed one side to an even thickness, and two thicknesses of pine tarred (Virginia rosin sized) (asphalted, Beaver brand) felt paper.

Shingles.-Shingle with good sawed pine (sawed or shaved cedar) [sawed shingles rot sooner, but hold paint better] shingles laid 4 inches to the weather and put on with two galvanized (Swedes iron) nails to each shingle.

Roofing with slate.-Cover the roof with matched pine boards, planed one side, two thicknesses pine tarred paper, and slate with best eastern (Peachbottom) (Chapman's) (Vermont green) (red) slate not over 8 by 16, laid with 3 inches lap, and nailed with two galvanized (patent) nails to each slate. Flashings.-Cut channels in brick work of chimney and cement in wide flashings of 4-pound lead; shingle in (slate in) wide zinc flashings in valleys, and warrant all tight for one year. (Cover ridge of slate roof with 4-pound lead, and slate in wide flashings on hips.)

Outside finish. Make finish and outside ornamental work, porch, &c., all of clear, seasoned pine, according to detail drawings.

Walls. Inclose the walls with hemlock boards (pine or spruce) planed one side to an even thickness, and two thicknesses of good felt (cane fibre) paper, breaking joint, and cover with sap extra pine clapboards, 4 inches to the weather (edge sprung boards) (matched or rebated boards) (shingles), all nailed with galvanized nails to every stud.

Casings, &c.-Casings and cornerboards 14 inches (7) thick. The top of all casings to be rebated and the under side of window sills ploughed to receive clapboards or shingles.

Porches.-Porches to stand on cedar (locust) (creosoted spruce) posts, 4 feet in the ground. Floors framed with 2 by 8 beams, and covered with matched 7-inch Georgia pine boards, well nailed and edge rounded. Fill in beneath with 7-inch boards jig-sawed as per detail drawing. Roof to have 2 by 4 rafters, with roofing as for main roofs, and ceiled underneath with 7-inch matched and beaded sheathing not over 4 inches wide, as shown on drawings.