And if it is not bounded all round, how much does he acquire [by one stroke of the spade]? R. Papa said: The length of a furrow made by a pair of oxen, there and back. R. Huna bought a field from a heathen, and a Jew came and dug up some of it. He then presented himself before R. Nahman, who confirmed his title to it. R. Huna said to him: You decide thus [do you not], because Samuel said that the property of a heathen is on the same footing as desert land and the first occupier becomes owner?