Treesearch

Many serious losses from decay in wooden structures are due to the fact that the timbers used were infected with wood-destroying fungi while in storage. These losses can be greatly reduced by keeping lumber storage yards in a sanitary condition. Some hints as to how to do this are given below.

In this bulletin, which is one of an annual series covering the period 1904 to 1917, inclusive, with the exception of 1914, are detailed statistics of the 1917 production of lumber, lath, and shingles in the continental United States, with comparative figures from previous annual reports. The collection and compilation of the statistics for the Western States was done through the district offices of the Forest Service at Missoqla, Denver, Albuquerque, Ogden, San Francisco, and Portland. The figures for New York State were furnished by the New York Conservation Commission. The work in all...

In the administration of the National Forests the aim is to convey to the greatest possible number the full benefit of all the resources which the Forests contain and at the same time to perpetuate these resources by regulating their use. Accordingly, grazing on the National Forests is regulated with the object of using the grazing resources to the fullest extent possible, consistent with the protection, development, and use of other resources.

It is a common experience in passing through stands of coniferous seedlings ten to thirty feet tall to notice the rapidly growing leaders of the dominant trees. A casual glance will show a surprising variation in the rate of height growth of the same tree in different years. The obvious explanation that occurs to one is that this variation is clue to a corresponding variation in the weather in the different years.

Sugar pine (Pinus lambertiana Dougl.) was first recognized by David Douglas, of the London Horticultural Society, on the headwaters of the Umpqua River in Oregon, October 26, 1826. The tree was given the specific name lambertiana in honor of Douglas's friend Aylmer Bourke Lambert, a founder and vice president of the Linnean Society of London and the author of a prominent work on pines. Sugar pine is the most valuable commercial timber tree on the Pacific coast, and its relative value among all the conifers of the world is very high. This is attributable partly to the characteristic...

The increasing effectiveness of suppression practice is shown by the fact that in 1915 fire suppression cost one-third as much as in 1914, and damage to Government property was kept down to one-fourth the 1914 figure. The seasons were approximately equal in danger. Is further progress to be expected?

In connection with the sowing of Yellow pine, White pine and Western larch on The Blackfeet National Forest during the sea sons of 1911 and 1912, seventeen and one-half acres were sowed directly in seed spots.