Forest Products Laboratory Supplementing Exhibit of the United States Forest Se
Forest Products Laboratory Supplementing Exhibit of the United States Forest Se
United States. Forest Service
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The high quality and purity of the products are attested by the great demand for this alcohol for the preparation of pharmaceuticals and colognes. SAWDUST FOR STOCK FOOD. Another study that has recently been started is the production of a stock food from sawdust. As in the manufacture of ethyl alcohol, the cellulose is first converted into sugar by treatment under pressure with dilute acid, and this sugar, after being extracted and boiled down to a thick molasses, is mixed with the sawdust resi...due. This so-called " wood meal" has been substituted for one-fourth the ordinary grain ration of the cattle, with a resulting increase in their weight and no decrease in the yield of milk. .. OTHER DERIVED 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. Aside irom its value in laboratory tests, the determination of the moisture content of wood is so impor- tant in connection with the various uses of wood that every wool working factory should become familiar with the simple process.
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