With carob trees —- all that see one another. Rabban Gamliel said: It was the practice in my father's house to give a single peah for olive trees which they had on each side [of the city], and for carob trees [they gave a single peah] for all that could see one another. R' Eliezer the son of R' Zadok said in his name: Even for carob trees which they had in the whole city.