Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 2010 with total page 2056 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 1997 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Resources of the Big Creek Drainage Basin written by T. J. Yakutchik and published by Ontario Water Resources Commission, Division of Water Resources. This book was released on 1970 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Two Billion Trees and Counting written by John Bacher and published by Dundurn. This book was released on 2011-07-13 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Short-listed for the 2012 Speaker’s Book Award Edmund Zavitz (1875–1968) rescued Ontario from the ravages of increasingly more powerful floods, erosion, and deadly fires. Wastelands were talking over many hectares of once-flourishing farmlands and towns. Sites like the Oak Ridges Moraine were well on their way to becoming a dust bowl and all because of extensive deforestation. Zavitz held the positions of chief forester of Ontario, deputy minister of forests, and director of reforestation. His first pilot reforestation project was in 1905, and since then Zavitz has educated the public and politicians about the need to protect Ontario forests. By the mid-1940s, conservation authorities, provincial nurseries, forestry stations, and bylaws protecting trees were in place. Land was being restored. Just a month before his death, the one billionth tree was planted by Premier John Robarts. Some two billion more would follow. As a result of Zavitz’s work, the Niagara Escarpment, once a wasteland, is now a UNESCO World Biosphere. Recognition of the ongoing need to plant trees to protect our future continues as the legacy of Edmund Zavitz.

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Download or read book Residue Reviews written by Francis A. Gunther and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: That residues of pesticide and other contaminants in the total environ ment are of concern to everyone everywhere is attested by the reception accorded previous volumes of "Residue Reviews" and by the gratifying enthusiasm, sincerity, and efforts shown by all the individuals from whom manuscripts have been solicited. Despite much propaganda to the con trary, there can never be any serious question that pest-control chemicals and food-additive chemicals are essential to adequate food production, manufacture, marketing, and storage, yet without continuing surveillance and intelligent control some of those that persist in our foodstuffs could at times conceivably endanger the public health. Ensuring safety-in-use of these many chemicals is a dynamic challenge, for established ones are continually being displaced by newly developed ones more acceptable to food technologists, pharmacologists, tOxicologists, and changing pest control requirements in progressive food-producing economies. These matters arc of genuine concern to increasing numbers of gov ernmental agencies and legislative bodies around the world, for some of these chemicals have resulted in a few mishaps from improper use. Ade quate safety-in-use evaluations of any of these chemicals persisting into our foodstuffs are not simple matters, and they incorporate the considered judgments of many individuals highly trained in a variety of complex biological, chemical, food technological, medical, pharmacological, and toxicological disciplines.

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Download or read book The Militia Stood Alone written by Stuart A. Rammage and published by Summerland, B.C.: Valley Pub.. This book was released on 2000 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Malcolm's Mills became known as the village of Oakland.

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