Mississippi State forest products professor Mike Barnes, left in white shirt, discusses wood preservation issues Tuesday with a group of high school students participating in a Natural Resource Summer Camp at MSU's Forest Products Lab Field Test Site at Dorman Lake. They are surrounded by several wood structures and samples of varying ages, and which have been exposed to different preservation techniques. Students from Jackson, Meridian, Starkville, Decatur, and Bogue Chitto are attending the camp, which is sponsored by MSU's College of Forest Resources.