The nineteenth century has often been characterized as an "age of revolution." Indeed, it was an age brimming over with revolutionary ideas of all sorts, as well as with political and social movements seeking to implement those ideas. The cast of revolutionary characters includes Marx and Engels, Darwin, Comte, and Freud; among major events -the French Revolutions, to name but a few. The nineteenth century was also an age of scientific revolution -- not The Scientific Revolution, a designation traditionally reserved for the period of radical and innovative discoveries which occurred in the interval between Copernicus and Newton -- even...