Bethlehem Revisited


Book Description




Lake and Reservoir Restoration


Book Description

Lake and Reservoir Restoration deals with the eutrophication process and the methods to protect, restore, and manage lakes and reservoirs. The most common in-lake techniques or procedures, plus nutrient diversion, are reviewed with regard to their scientific basis, methods of application, known effectiveness, feasibility, drawbacks, and costs. Areas for further research and development are also highlighted. This book is comprised of 16 chapters organized into four sections. After an introduction to the theory of the problem and the restoration technique, the discussion turns to the various restoration methods such as those used for physical and chemical control of nutrients. Diversion and advanced waste treatment, hypolimnetic withdrawal, and dilution and flushing are considered along with phosphorus precipitation and inactivation, sediment oxidation, sediment removal, and hypolimnetic aeration. Case studies and success stories are presented and the costs and potential negative impacts of the methods are examined. The following chapters focus on methods to control plant biomass, including artificial circulation, water-level drawdown, harvesting, biological control, and surface and sediment covers. A chapter on liming acidified lakes concludes this text. This monograph will be useful to professional limnologists and engineers, on-site lake or reservoir managers, and those who are interested in learning about the problems and management of lakes and reservoirs.




Between the Cracks of History


Book Description

Six essays discuss definitions and explanations of folklore, and methods of teaching it. Then 15 additional essays explore Texas folklore related to such topics as police burials, gang graffiti, fiddling, ghosts, dance halls, oil fields, spring rituals, and the dialect spoken along the border between Texas and Mexico. Numerous illustrations and black-and-white photographs. Annotation copyrighted by Book News, Inc., Portland, OR