• Jayne, Ben A.
  Yale University School of Forestry, New haven, Conn
  

The better of two sites for red pine produced a greater volume of wood of lower specific gravity than a poorer site. Although spacings of 4 by 4, 6 by 6, and 8 by 8 ft. had only a minor effect on specific gravity, the volume of wood produced on both sites increased with the closer spacings. In all stems density decreased from the base upward and from the cambium inward. The slope of height-specific gravity relationships tended to increase from the poorer to the better site and also from the wider to the closer spacings.