Transcribed from back: Farm Forestry Series by R.W. Graeber, Extension Forester. #425. 1931. Extension forester discussing timber thinning and management with farmers and agricultural students of the Copeland High School, at the farm of Lee Perkins, Surry County. This field of 23-year-old shortleaf pine gave a yield of 10 cords of thinnings per acre, with 810 pines per acre left. Will be ready for 2nd cut in 5 years.