Prolific marriage must be a profitable privilege. It must occur only under certain obvious conditions, the contracting parties must be in health and condition, free from specific transmissible taints, above a certain minimum age, and sufficiently intelligent and energetic to have acquired a minimum education. The man at least must be in receipt of a net income above the minimum wage, after any outstanding charges against him have been paid. All this much it is surely reasonable to insist upon before the State becomes responsible for the prospective children. The age at which men and women may contract to marry is difficult to determine. But if we are, as far as possible, to put women on an equality with men, if we are to insist upon a universally educated population, and if we are seeking to reduce the infantile death-rate to zero, it must be much higher than it is in any terrestrial State. The woman should be at least one-and-twenty; the man twenty-six or twenty-seven. One imagines the parties to a projected marriage first obtaining licenses which will testify that these conditions are satisfied. From the point of view of the theoretical Utopian State, these licenses are the feature of primary importance. Then, no doubt, that universal register at Paris would come into play. As a matter of justice, there must be no deception between the two people, and the State will ensure that in certain broad essentials this is so. They would have to communicate their joint intention to a public office after their personal licenses were granted, and each would be supplied with a copy of the index card of the projected mate, on which would be recorded his or her age, previous marriages, legally important diseases, offspring, domiciles, public appointments, criminal convictions, registered assignments of property, and so forth. Possibly it might be advisable to have a little ceremony for each party, for each in the absence of the other, in which this record could be read over in the presence of witnesses, together with some prescribed form of address of counsel in the matter. There would then be a reasonable interval for consideration and withdrawal on the part of either spouse. In the event of the two people persisting in their resolution, they would after this minimum interval signify as much to the local official and the necessary entry would be made in the registers. These formalities would be quite independent of any religious ceremonial the contracting parties might choose, for with religious belief and procedure the modern State has no concern.