lans were formulated by engineers, architects, and town planners who
had given much thought to the particular problems involved. Camp sites
comprising from 2,000 to 11,000 acres each were selected by a board of
Army officers under the direction of the department commanders. Names of
responsible contracting firms were secured and every effort made to
perfect an organization competent to carry out the work of completing
the camps at the earliest possible moment. The magnitude of assembling
an organization for carrying on the work and securing the labor and
materials therefor can in some measure be realized by reference to the
following table, showing quantities of the principal materials
estimated to be used in the construction of the National Army
cantonments.

[Sidenote: Approximate quantities of materials.]

The approximate quantities of principal materials used in the
construction of the various National Army camps are shown in the
following tables. This does not include National Guard, embarkation, or
training camps.

Quantity.
Lumber (feet b. m.) 450,000,000
Roofing paper (square feet) 76,000,000
Doors 140,000
Window sash 700,000
Wall board (square feet) 29,500,000
Shower heads 40,000
Water-closet bowls 54,000
Tank heaters and tanks 11,000
Heating boilers 1,800
Radiation (square feet) 4,200,000
Cannon stoves 20,000
Room heaters 20,000
Kitchen stoves and ranges 10,000
Wood pipe for water supply (feet) 1,000,000
Cast-iron supply pipe (feet) 470,000
Wire, all kinds and sizes (miles) 5,500
Wood tanks (aggregate capacity) 8,300,000
Hose carts 600
Fire engines 90
Fire extinguishers 4,700
Fire hose (feet) 392,500
Fire hydrants 3,600
Hand-pump tanks 12,700
Fire pails 163,000
Cots 721,000

Sixteen National Army camps were constructed in various parts of