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acre per person additional areas exist age-old road agricultural production America to 0.5 amount and flexibility animals would add badly the past Bank of Detroit birth rate bury the gloomy Chairman Chrysler complacency achieved concluding their efforts continue ever downward controversy on population efficient agricultural operations eral especially is retarded Esqre extremely limited acreage forebodings of Malthus forget the sand forgotten our need fundamental solution gloomy Specter Harry Ferguson Henry Ford heroes need assistance heroes of economic increase Industrial Revolution Kyes linkage long and up-hill machine Malthus can long Malthus created Material Progress mechanical power ment methods be completely Michigan Committee Newcomen Society North America number of tractors percent pioneer plow population growth power will modern present number Progress is long road to Material Roger sand of character shrouds of history Society of England Specter which Malthus Thomas Newcomen Thomas Robert Malthus Tractor and implement Trust Comfany Unit Principle Western world