American Environmental History: The Exploitation and Conservation of Natural Resources |
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American Environmental History: The Exploitation and Conservation of Natural ... Joseph M. Petulla No preview available - 1977 |
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acres agricultural American areas automobile banks became began California canals cattle century cities coal colonies companies Congress conservation conservation movement corn corporations cotton crops early eastern economic electric energy engine England environmental farm farmers federal government fish Forestry gold grain headright system Homestead Act homesteading hundreds increased Indians industry iron irrigation John Muir Keweenaw Peninsula labor Lakes later laws loggers lumbermen markets Marsh mercantilist miles millions mills mineral mining monopoly Muir natural resources needed Ohio Ohio River oligopoly Pennsylvania Pinchot plantations planters plants plow political pollution preemption laws problems production profits protection public lands railroad region reserves River Roosevelt settlement settlers soil South southern speculators Spindletop square miles steam steel supply Texas thousands timber tion trade transportation trees U.S. Forest Service U.S. Steel uranium utilized Valley West western whale wheat wildlife