Land"" considered geologically, historically, patriotically, ecologically, in separate and variously pertinent chapters. Theories of the origins of continents and mountains are explained at length but with no application to later land use, conservation, or other topics covered here. An historical survey of U.S. land covers homesteading and other claims on the public domain, territorial expansion, Congressional short-sightedness in the 19th century, and the history of our national parks, forests, and wildlife refuges. Later chapters classify the land according to soil type, uses, forms of life, and other criteria. A lengthy discussion of the concept of ecology leads into a history of conservation that focuses on government acts and pronouncements and culminates with an anticlimactic list of presidential statements, conferences, appointments and measures from Kennedy to Nixon. An index provides access to the various laws, agencies, and regions, but the parts of the book lack thrust and the whole adds up to a roundabout way of getting nowhere.