Ex. 2. Required the content of a wall whofe length is 60 feet 9 inches, its height 10 feet 3 inches, and thickness 2 feet. Anf. 1556.718 feet.

Ex. 3. In a chimney-piece, the length of each jamb is 4 feet 4 inches, breadth of both together I foot 9 inches, length of the mantle and flab each 4 feet 6 inches, breadth of both together 3 feet 2 inches-required the content.

Anf. 21 feet 10 inches.

BRICKLAYERS-WORK.

IN Scotland, brick-work is measured by the fquare yard-in England, by the fquare rod, which is 16.5 long, and confequently contains 272.25 fquare feet; but 272 is generally efteemed fufficiently accurate.

Brick-work is of standard thicknefs, when the wall is the length of one brick and the breadth of another, thick. Brick walls of other thickness must be reduced to that standard by the following

RULE.

Multiply the fuperficial content of the wall by the number of half bricks in the thickness; divide the product by 3, and the quotient is the content, reduced to standard thickness.

EXAMPLE I.

A brick wall is 36 feet 6 inches long, and 17 feet 3 inches high, and 54 bricks thick-required the content.

Ex. 3. If each fide wall of a building be 45 feet long on the outfide, each end wall 15 feet broad on the infide, the height of the building 20 feet, and the gable at each end of the wall 6 feet high, the whole being two bricks thick-required the conAnf. 12.1761.

tent.

PLAISTERERS WORK.

PLAISTERERS Work is of two kinds, viz. plaiftering upon walls, called rendering; and plaistering upon laths, called ceiling. Deductions are made for doors, windows, &c. All is measured by the fquare yard.

EXAMPLE I.

The length of a partition is 22 feet, and height 12,—how many yards of plaister-work are in it ?

Ex. 2. If a ceiling be 594 feet long, and 24 feet broadhow many yards? 3. How

Ex.

Anf. 162.652 fquare yards. many yards, rendering and ceiling, in a room

28 feet long, 131 broad, and 8 high?

Anf. 117 yards 3 feet 9 inches.

CARPENTERS WORK.

CARPENTERS or joiners work is that of flooring, roofing, partitioning, &c. and is either measured by the square yard, or by the fquare of 100 feet.

Doors and window-fhutters are reckoned work and halfwork. If the door be pannelled on both fides it is esteemed double work. For the architrave, gird it about the outmoft part for its length; measure over it as far as can be feen, when the door is open, for the breadth. In the measuring of roofing, for workmanship alone, fky-lights and holes for chimney-shafts are deducted; but when for workmanship and materials together, no deduction is made.

Stairs may be meafured in the following manner :-Take the breadth of all the fteps, and make a line ply over them from top to bottom; multiply the length of this line by the length of a step for the area.

EXAMPLE I.

If a floor is 50 feet long and 28 feet broad-how many fquares?

28 500

1400

14

100) 1414

Anf. 14 fquares 14 feet.

Ex. 2. If a houfe within walls be 44 feet 6 inches long, and 18 feet 3 inches broad, how many fquares of roofing will cover it? Anf. 12 fquares 18 feet.

It is customary to confider the roof as a flat, and half a flat taken within walls.

In fome places, double meafure is allowed for hips, vallics, gutters, &c. and no deduction for chimneys.

EXAMPLE I.

A flate roof is 30 feet long and 26 feet over,-how many fquares are in it?

Ex. 2. How many fquares tiling in a roof 35 feet deep, and whofe length is 48? An. 16 fquares 92 feet. Ex. 3. How much flating in a pavilion roof, with a platform 50 feet long and 30 broad at the eaves, and 3 feet long by 10 จ at the platform; 14 feet from the platform to the eaves, taken the fhorteft way, and 17 along the hips?

Anf. 5 roods 31 yards.

GLAZIERS WORK.

GLAZIERS take their dimenfions in feet, inches, and parts. All circular, triangular, &c. windows, are 'meafured as if they were squares; and the greatest lengths and breadths are taken on account of the trouble and waste of glafs attending the cutting.

EXAMPLE.