Treesearch

The best thing that can be said of any dry kiln is that when it is run by a properly informed operator the temperature, humidity, and circulation are constant and uniform. In an endeavor to produce a kiln in which each of these could be regulated independently of the others, the Forest Products Laboratory designed and developed the "Forest Service Humidity Regulated Water Spray Kiln," described in this bulletin.

Jack pine is a very frugal tree in its climatic and soil requirements. The northern limit of its natural range is within 14 degrees of the Arctic Circle and the southern is marked by the southern shores of Lake Michigan. No other North American pine grows naturally so far north and all the others grow farther south. It develops commercial stands and reproduces itself on dry, barren, sandy ridges and plains unsuited to other native trees. The seed germinates more quickly and grows more rapidly in its early years on lumbered and burned-over forest land and on idle, worn-out, cleared land...

The right handling of the home forest has come to be a matter of recognized importance in farm management. Farming touches forestry at a number of different points. The farm requires timber for the building and repair of houses, barns, sheds, fences, and telephone lines. It needs more or less wood for fuel, and it should have some woodland also for protecting the soil against erosion on steep slopes, for shelter for growing crops and livestock against the hot, dry wmds of midsummer, the cold winds of winter, and likewise for the comfort of man and the home of game animals.