This work examines the issue of accelerated soil erosion, which has become an increasingly serious concern in the twentieth century. Aspects considered include on-site impact of erosion; application of soil science to problems of non-agricultural uses of soil, such as mineland restoration, urban uses and disposal of urban wastes; soil

Books about Soil Survey, Hansford County, Texas

Books about Selected Water Resources Abstracts

Books about Fertilizer Abstracts

North of the Color Line examines life in Canada for the estimated 5,000 blacks, both African Americans and West Indians, who immigrated to Canada after the end of Reconstruction in the United States. Through the experiences of black railway workers and their union, the Order of Sleeping Car Porters, Sarah-Jane