I observe that not a few continental jurists have much difficulty in comprehending the nature of the connection between the conceptions blended in a universal succession, and there is perhaps no topic in the philosophy of jurisprudence on which their speculations, as a general rule, possess so little value. But the student of English law ought to be in no danger of stumbling at the analysis of the idea which we are examining. Much light is cast upon it by a fiction in our own system with which all lawyers are familiar. English lawyers classify corporations as Corporations aggregate and Corporations sole. A Corporation aggregate is a true Corporation, but a Corporation sole is an individual, being a member of a series of individuals, who is invested by a fiction with the qualities of a Corporation. I need hardly cite the King or the Parson of a Parish as instances of Corporations sole. The capacity or office is here considered apart from the particular person who from time to time may occupy it, and, this capacity being perpetual, the series of individuals who fill it are clothed with the leading attribute of Corporations--Perpetuity. Now in the older theory of Roman Law the individual bore to the family precisely the same relation which in the rationale of English jurisprudence a Corporation sole bears to a Corporation aggregate. The derivation and association of ideas are exactly the same. In fact, if we say to ourselves that for purposes of Roman Testamentary Jurisprudence each individual citizen was a Corporation sole, we shall not only realise the full conception of an inheritance, but have constantly at command the clue to the assumption in which it originated. It is an axiom with us that the King never dies, being a Corporation sole. His capacities are instantly filled by his successor, and the continuity of dominion is not deemed to have been interrupted. With the Romans it seemed an equally simple and natural process, to eliminate the fact of death from the devolution of rights and obligations. The testator lived on in his heir or in the group of his co-heirs. He was in law the same person with them, and if any one in his testamentary dispositions had even constructively violated the principle which united his actual and his posthumous existence, the law rejected the defective instrument, and gave the inheritance to the kindred in blood, whose capacity to fulfil the conditions of heirship was conferred on them by the law itself, and not by any document which by possibility might be erroneously framed.