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Cultivated Landscapes of Native North America Boolean Algebras reliable resource for ongoing referenceWilliam E. Doolittle challenges established theories about native agriculture in North America, and puts forward new and innovative ideas. Looking at the evidence from a geographical standpoint, he focuses on fields, field features, and field systems. Emphasis is placed on modifications to the biophysical environment, specifically vegetation, soil, slope, and hydrology. There is a thorough exploration of horticulture, the methods used to maximise the