Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 350

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 420

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Author:
Publisher:
ISBN:
Category : Environmental impact statements
Languages : en
Pages : 354

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 360

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Author: Clarence R. Geier
Publisher: Createspace Independent Publishing Platform
ISBN: 9781541023482
Category :
Languages : en
Pages : 232

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The book includes six chapters that cover Virginia history from initial settlement through the 20th century plus one that deals with the important role of underwater archaeology. Written by prominent archaeologists with research experience in their respective topic areas, the chapters consider important issues of Virginia history and consider how the discipline of historic archaeology has addressed them and needs to address them . Changes in research strategy over time are discussed , and recommendations are made concerning the need to recognize the diverse and often differing roles and impacts that characterized the different regions of Virginia over the course of its historic past. Significant issues in Virginia history needing greater study are identified.

Author: William G. Dore
Publisher: Research Branch, Agriculture Canada ; Hull, Que. : available from Canadian Government Pub. Centre Supply And Services Canada
ISBN:
Category : Nature
Languages : en
Pages : 576

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The grass family (Gramineae or Poaceae) is one of the largest families of flowering plants and one that is well represented in Ontario. This guide provides an account of the genera, species, and infraspecific taxa of native or introduced plants. Identification keys are provided to the genera, to the species within each genus, and to the main infraspecific taxa. Generic descriptions are provided, reflecting the characteristics common to the species occurring in Ontario and not necessarily applying to the genera as a whole. Formal descriptions of the species are not included, but outstanding diagnostic characteristics, particularly those noticeable in the field, are given. Photographs of individual florets or grains are provided for almost all the species.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309172683
Category : Nature
Languages : en
Pages : 569

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In 1997, New York City adopted a mammoth watershed agreement to protect its drinking water and avoid filtration of its large upstate surface water supply. Shortly thereafter, the NRC began an analysis of the agreement's scientific validity. The resulting book finds New York City's watershed agreement to be a good template for proactive watershed management that, if properly implemented, will maintain high water quality. However, it cautions that the agreement is not a guarantee of permanent filtration avoidance because of changing regulations, uncertainties regarding pollution sources, advances in treatment technologies, and natural variations in watershed conditions. The book recommends that New York City place its highest priority on pathogenic microorganisms in the watershed and direct its resources toward improving methods for detecting pathogens, understanding pathogen transport and fate, and demonstrating that best management practices will remove pathogens. Other recommendations, which are broadly applicable to surface water supplies across the country, target buffer zones, stormwater management, water quality monitoring, and effluent trading.

Author: Martha A. Zierden
Publisher:
ISBN: 9781880067536
Category : Excavations (Archaeology)
Languages : en
Pages : 384

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Book Description
Willtown was founded in the late 17th century on the banks of the South Edisto River, but the movement of the Willtown Church in the 1760s to another location marked the demise of the town. Hugh C. Lane Jr. encouraged The Charleston Museum in its research in and around the Willtown area, asking the question, "Why did Willtown fail?" "Our serendipitous discovery of James Stobo's rice plantation a mile from Willtown revealed a site remarkable in its pristine preservation, the clarity of its stratigraphic record, the number and types of artifacts recovered, and in the complexity of its architectural detail."--Introduction, p. 1.

Author: Allan Nevins
Publisher:
ISBN:
Category : History
Languages : en
Pages : 764

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Author: George A. Hool
Publisher:
ISBN:
Category : Bridges, Iron and steel
Languages : en
Pages : 540

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Book Description