specific, and escape the danger of small-pox by submitting to an attack of cow-pox. Playing the part of moralist, they decide which dramas are fit to be acted and which are not. Playing the part of artist, they prompt the setting up of drawing-schools, provide masters and models; and, at Marlborough House, enact what shall be considered good taste and what bad. Through their lieutenants, the corporations of towns, they furnish appliances for the washing of peoples’ skins and clothes; they, in some cases, manufacture gas and put down water-pipes; they lay out sewers and cover over cess-pools; they establish public libraries and make public gardens. Moreover, they determine how houses shall be built, and what is a safe construction for a ship; they take measures for the {302} security of railway-travelling; they fix the hour after which public-houses may not be open; they regulate the prices chargeable by vehicles plying in the London streets; they inspect lodging-houses; they arrange for burial-grounds; they fix the hours of factory hands. If some social process does not seem to them to be going on fast enough, they stimulate it; where the growth is not in the direction which they think most desirable, they alter it; and so they seek to realize some undefined ideal community. Such being the task undertaken, what, let us ask, are the qualifications for discharging it? Supposing it possible to achieve all this, what must be the knowledge and capacities of those who shall achieve it? Successfully to prescribe for society, it is needful to know the structure of society—the principles on which it is organized—the natural laws of its progress. If there be not a true understanding of what constitutes social development, there must necessarily be grave mistakes made in checking these changes and fostering those. If there be lack of insight respecting the mutual dependence of the many functions which, taken together, make up the national life, unforeseen disasters will ensue from not perceiving how an interference with one will affect the rest. That is to say, there must be a due acquaintance with the social science—the science involving all others; the science standing above all others in complexity.