It is built of wood, the various native timbers being happily combined.
At Fallen Timbers, Ohio (Aug.
Outside of these general areas, forest products are of relatively little value, the exceptions being the dense growths, in certain restricted areas, of live-oak, which is in demand for ship timbers; and scattering patches of hickory, which is requisite for certain manufactures.
In thickness, whereas in the top-slide system the height of the floor is limited by the length of the timbers used in the working-rooms, rarely over S or Io ft.
There are no regulations in England limiting the working stresses that may safely be placed upon timber, although in some districts the least sizes that may be used for timbers in roofs and floors are specified.