425 (1799), is an early United States Supreme Court case about conflicting land claims.

[1] The Court unanimously found in favor of Simms, who had the earlier claim.

The Court held that: "A military right to unappropriated land in America, acquired under a royal proclamation of 1763, was made assignable by the law of Virginia, to an inhabitant of that State.

Obtaining a warrant and so locating it as to describe a particular parcel of land, gave to the assignee a complete equitable title, which was confirmed by the compact between Pennsylvania and Virginia.

A survey in Pennsylvania, and payment of the consideration, gave a legal right of entry, which supports an ejectment.