The book Forest Products Laboratory was written by author United States. Forest Service Here you can read free online of Forest Products Laboratory book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Forest Products Laboratory a good or bad book?
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OTHER DKRIVIvD PRODUCTS. Other products derived from trees or forest materials, and therefore within the scope of the Laboratory's work, are tannins, gums, balsams, essential oils extracted from the wood, roots, bark, or leaves of various FOREST PRODUCTS LABORATORY. 23 Aside irom its value in laboratory tests, the determination of the moisture content oi wood is so impor- tant in connection with the various uses of wood that every wooi %vorking factory should become familiar with the simple pro...cess. A knowledge of the moisture content of the stock often makes it possible to avoid costly manufacturing difficulties. 24 FOREST PRODUCTS LABORATORY Special small-scale digesters for the manufacture of chemical pulp provide facilities for the study of pi:lping problems at a moderate cost, preliminary to a cooperative mill test. FOREST PRODUCTS I.ABORATORY. 25 trees, and producer gas manufactured from wood. The chemical deriv- atives of cellulose, while not yet touched upon, also offer a fertile field for investigation.
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