1,000 shingles laid 4 inches to the weather will cover 100 square feet of surface, and 5 pounds of shingle nails will fasten them on.

One-fifth more siding and flooring is needed than the number of square feet of surface to be covered, because of the lap in the siding and matching. 100 laths will cover 70 yards of surface, and 11 pounds of lath nails will nail them on. 8 bushels of good lime, 16 bushels of sand, and 1 bushel of hair will make enough good mortar to plaster 100 square yards.

A cord of stone, 3 bushels of lime, and a cubic yard of sand, will lay 100 cubic feet of wall.

Five courses of brick will lay one foot in height on a chimney, 8 bricks in a course will make a flue 4 inches wide and 12 inches long, and 16 bricks in a course will make a flue 8 inches wide and 16 inches long.

Cement, one bushel, and sand, two bushels, will cover 3 1/2 square yards 1 inch thick, 4 1/2 square yards 3/4 inch thick, and 6| square yards 1/2 inch thick; 1 bushel cement and 1 bushel of sand will cover 2 1/4 square yards 1 inch thick, 3 square yards § inch thick, and 4 1/2 square yards 1/2 inch thick.

## Number of Bricks Required in Wall per Square Foot Face of Wall

Thickness of Wall No.

4 inches.................. 7 1/2

8 " .................. 15

12 ".................... 22 1/2

16 ".................... 30

20 " .............. ... 37 1/2

Thickness of Wall No.

24 inches.................. 46

28 " .................. 52

32 " .................... 60 1/2

36 " .................. 67

42 " .................. 75 1/2

## The Number of Bricks Required to Construct any Building

Reckoning 7 bricks to each superficial foot. Example - Required the number of bricks in 100 superficial feet of wall, 12 inches thick. Under 12 inch, and opposite 100, you will find the answer, 2,250, the number of bricks required.

 SuperficialFeet of Wall Number of Bricks to Thickness of 4 inch 8 inch 12 inch 16 inch 20 inch 24 inch 1 7 15 23 30 38 45 2 15 30 45 60 75 90 3 23 45 68 90 113 135 4 30 60 90 120 150 180 5 38 75 113 150 188 225 6 45 90 135 180 225 270 7 53 105 158 210 263 315 8 60 120 180 240 300 360 9 68 135 203 270 338 405 10 75 150 225 300 375 450 20 150 300 450 600 750 900 30 225 450 675 900 1,125 1,3)0 40 300 600 900 1,200 1,500 1,800 50 375 750 1,125 1,500 1,875 2,250 60 450 900 1,350 1,800 2,250 2,700 70 525 1,050 1,575 2,100 2,625 3,150 80 600 1,200 1,800 2,400 3,000 3,600 90 675 1,350 2,025 2,700 3,375 4.030 100 750 1,500 2,250 3,0J0 3,750 4,500 200 1,500 3,000 4,500 6,000 7,500 9,000 300 2,250 4,500 6,750 9,000 11,250 13,500 400 3,000 6,030 9,000 12,000 15,000 18,000 500 3,750 7,500 11,250 15,000 18,750 22 500 600 4,500 9,000 13,500 18,000 22,500 27.C00 700 5,230 10,500 15,750 21,000 26,250 31,500 800 6,000 12,000 18,000 24,000 30,000 36,000 900 6,750 13,500 20,250 27,000 33,750 40,500 1,000 7,500 15,000 22,500 30,000 37,500 45,000