The field of forestry is broad. It covers every step of timber growth and utilization, from the tree seed to the final use of the finished wood product. It embraces nursery practice, planting and reforestation; woodland management; protection from fire and pests; control of water supply; forest recreation; lumbering and milling; preservation of products; transportation; utilization and marketing. It deals with silviculture and agriculture; waste-land utilization; logging engineering; timber physics; chemistry of by-products; finance and taxation. Practically every kind of science and business enters into the solving of forestry problems. Forestry means dollars earned by woodland owners and dollars saved by timber consumers. It affects everyone.