The item of cost of labor, on construction of any kind, is at best a variable quantity, dependent to a large degree upon competition, demand, and labor organization.

The cost of labor is steadily on the increase, while the hours of labor are continually decreasing. The tendency in both directions operates to a certain degree to lessen the effective power of labor, so that the amount of work done in a day is not what it represented a few years ago.

The various schedules given in the following pages are based upon the current price of labor in Boston, Mass., in 1906, and while this is likely to be upset somewhat by a general advance in 1907, there is not likely to be a great difference for some time. Blank spaces are left in these columns so that the student or contractor can fill in local or varying prices of labor.

Wages, Per Day of Eight Hours, in Various Trades, Boston, Mass., 1906

Carpenters

$3.28..

Stone Masons

4.50..

Brick Masons

4.80..

Hod Carriers

2.40..

Plasterers

5.00..

Plasterers' Helpers

3.00..

Lathers

4.50..

Quarrymen (9-hour day)

2.50..

Stone Cutters

4.00..

Tile Setters

4.80..

Tile Helpers

2.60.

Roofers

$3.50..

Roofers' Helpers

2.25..

Steam Fitters

4.40..

Steam Fitters' Helpers

2.25..

Plumbers

4.40..

Plumbers' Helpers

1.50..

Gas Fitters

4.40..

Gas Fitters' Helpers

2.25..

Electricians

3.60..

Painters

3.00..