LVIII THE INDUSTRIAL REVOLUTION There is a tendency in many histories to confuse together what we have here called the mechanical revolution, which was an entirely new thing in human experience arising out of the development of organized science, a new step like the invention of agriculture or the discovery of metals, with something else, quite different in its origins, something for which there was already an historical precedent, the social and financial development which is called the industrial revolution. The two processes were going on together, they were constantly reacting upon each other, but they were in root and