The clause in the will gives the land .over, if Lawrence should die without a lawfully begotten heir. Now he cannot die witiiout heir as long as tiie persons live to whom tiie ulterior limitation gives it upon the happening of that event; for they may become heirs at law after the death of others more nearly related. *248The word heir, in the singular number, must therefore mean issue; and by that means the estate first given in fee is turned into an estate tail, and by the act of 1784, is converted into a fee-simple again in the first taker, The ulterior limitation is therefore void, and nothing passes by it.
By the Court. — Judgment affirmed.