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if not paramount among world-changing inventions in the history of man is that series of contrivances in locomotion that began with the railway and ended for a century or more with the motor and the patent road. That these contrivances, together with the device of limited liability joint stock companies and the supersession of agricultural labourers by skilled men with ingenious machinery, would necessarily concentrate mankind in cities of unparalleled magnitude and work an entire revolution in human life, became, after the event, a thing so obvious that it is a matter of astonishment it was not more clearly anticipated. Yet that any steps should be taken to anticipate the miseries such a revolution might entail does not appear even to have been suggested; and the idea that the moral prohibitions and sanctions, the privileges and concessions, the conception of property and responsibility, of comfort and beauty, that had rendered the mainly agricultural states of the past prosperous and happy, would fail in the rising torrent of novel opportunities and novel stimulations, never seems to have entered the nineteenth-century mind. That a citizen, kindly and fair in