Transcribed from back: T.S.I. demonstration in 18-year-old loblolly pine. 25 cords cut on 2 1/2 acres and 360 trees per acre left. Height 35 to 40 feet. One-third of trees cut and two-thirds left. Height growth 2 feet a year. Right age for thinning. Land of R. D. Clemmons, Supply, Brunswick County.; Credit Line! This print may be reproduced. Use the following credit line: "Photo by U.S. Forest Services."