if the vendor did not [tacitly] reserve some soil for himself, the purchaser could say to him [when the trees wither], pluck up your tree and be off with it. We have learnt: R. SIMEON SAYS THAT IF A MAN SANCTIFIES HIS FIELD HE ONLY SANCTIFIES THE FULL-GROWN CAROB AND THE CROPPED SYCAMORE TREE; and in connection with this it was taught: R. Simeon said: What is the reason? Because they suck from a sanctified field. Now if you assume that the sanctifier tacitly reserves something to himself, then when the trees suck they suck from his property [do they not]? [We must suppose therefore that] R. Simeon follows R. Akiba and that R. Huna was following the Rabbis. [But if R. Huna was stating his rule from the point of view of] the Rabbis, it is self-evident? — Its practical bearing is that if the trees fall he can plant them again.