. Essentials of biology presented in problems. Biology. 136 OUR FORESTS Forests h^ve great commercial importance as well. Even in this day of coal/wood is still by far the most-used fuel. It is useful in building. It outlasts iron under water, in addition to being durable and light. It is cheap and, with care of the foreste, inexhaustible, while our mineral wealth will some day be used up.^Hard woods are chiefly used in house building and furniture manufacture; the soft woods, reduced to pulp, are made into paper. Distilled wood gives alcohol, c*. Partially burned wood is charcoal. Vinegar and
. Essentials of biology presented in problems. Biology. 136 OUR FORESTS Forests h^ve great commercial importance as well. Even in this day of coal/wood is still by far the most-used fuel. It is useful in building. It outlasts iron under water, in addition to being durable and light. It is cheap and, with care of the foreste, inexhaustible, while our mineral wealth will some day be used up.^Hard woods are chiefly used in house building and furniture manufacture; the soft woods, reduced to pulp, are made into paper. Distilled wood gives alcohol, c*. Partially burned wood is charcoal. Vinegar and other acids are obtained from trees, as are tar, creosote, resin, turpentine, and other useful oils. V The making of maple sirup and sugar forms a profitable industry in several FOREST REGIONS \ fi~ \ l forest regions ^-^ } t • 1 He:iviestfure.'tt3 The forest regions of the United States. The Forest Regions of the United States. — The combined area of all the forests in the United States, exclusive of Alaska, is about 500,000,000 acres. This seemingly immense area is rapidly de- creasing in acreage and in quality, thanks to the demands of an increasing population, a woeful ignorance on the part of the owners of the land, and wastefulness on the part of cutters and users aUke. A glance at the map shows the distribution of our principal forests. The fcjllowing figures taken from the United States Census reports tell their own tale. In 1908, 31,231 sawmills cut. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hunter, George William, 1873-1948. New York, Cincinnati [etc. ] American Book Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1911
