in the sense of "public" economy, of the State as the public financier, and not of the conditions governing industry. He conceives the State as a body aiming at the well-being of all its members and subordinates all his views of taxation to that end. He who has only necessaries should not be taxed at all; superfluities should be supertaxed; there should be heavy imposts on every sort of luxury. The first part of the article is still more interesting. Rousseau begins by demolishing the exaggerated parallel so often drawn between the State and the family; he shows that the State is not, and cannot be, patriarchal in nature, and goes on to lay down his view that its real being consists in the General Will of its members. The essential features of the _Social Contract_ are present in this Discourse almost as if they were commonplaces, certainly not as if they were new discoveries on which the author had just hit by some happy inspiration. There is every temptation, after reading the _Political Economy_, to suppose that Rousseau's political ideas really reached maturity far earlier than has generally been allowed. The _Social Contract_ finally appeared, along with _Emile_, in 1762. This year, therefore, represents in every respect the culmination of Rousseau's career. Henceforth, he was to write only controversial and confessional works; his theories were now developed, and, simultaneously, he gave to the world his views on the fundamental problems of politics and education. It is now time to ask what Rousseau's system, in its maturity, finally amounted to. The _Social Contract_ contains practically the whole of his constructive political theory; it requires to be read, for full understanding, in connection with his other works, especially _Emile_ and the _Letters on the Mount_ (1764), but in the main it is self-contained and complete. The title sufficiently defines its scope. It is called _The Social Contract or Principles of Political Right_, and the second title explains the first. Rousseau's object is not to deal, in a general way, like Montesquieu, with the actual institutions of existing States, but to lay down the essential principles which must form the basis of every legitimate society. Rousseau himself, in the fifth book of the _Emile_, has stated the difference clearly. "Montesquieu," he says, "did not intend to treat of the principles of political right; he was content to treat of the positive right (or law) of established governments; and no two studies could be more different than these." Rousseau then conceives his object as being something very different from that of the _Spirit of the Laws_, and it is a wilful error to misconstrue his purpose. When he remarks that "the facts," the actual history of political societies, "do not concern him," he is not contemptuous of facts; he is merely asserting the sure principle that a fact can in no case give rise to a right. His desire is to establish society on a