This report is one of a series issued in cooperation with the Army-Navy-Civil Committee on Aircraft Design Criteria under the supervision of the Aeronautical Board.
Originally published in "Proceedings of the Fifth Southern Conference on Forest Tree Improvement," by the School of Forestry, North Carolina State College, Raleigh, N.C., 1959.
This report is one of a series issued in cooperation with the Army-Navy-Civil Committee on Aircraft Design Criteria under the supervision of the Aeronautical Board.