whether by Will or by Intestacy, was his Heir. But the Heir was not necessarily a single person. A group of persons considered in law as a single unit, might succeed as _co-heirs_ to the Inheritance. Let me now quote the usual Roman definition of an Inheritance. The reader will be in a position to appreciate the full force of the separate terms. _Haereditas est successio in universum jus quod defunctus habuit_ ("an inheritance is a succession to the entire legal position of a deceased man"). The notion was that, though the physical person of the deceased had perished, his legal personality survived and descended unimpaired on his Heir or Co-heirs, in whom his identity (so far as the law was concerned) was continued. Our own law, in constituting the Executor or Administrator the representative of the deceased to the extent of his personal assets, may serve as an illustration of the theory from which it emanated, but, although it illustrates, it does not explain it. The view of even the later Roman Law required a closeness of correspondence between the position of the deceased and of his Heir which is no feature of an English representation; and in the primitive jurisprudence everything turned on the continuity of succession. Unless provision was made in the will for the instant devolution of the testator's rights and duties on the Heir or Co-heirs, the testament lost all its effect. In modern Testamentary jurisprudence, as in the later Roman law, the object of first importance is the execution of the testator's intentions. In the ancient law of Rome the subject of corresponding carefulness was the bestowal of the Universal Succession. One of these rules seems to our eyes a principle dictated by common sense, while the other looks very much like an idle crotchet. Yet that without the second of them the first would never have come into being is as certain as any proposition of the kind can be.