One who sets aside only part of terumah and tithes, may take terumah from that [heap], but he may not take terumah from it for other produce. Rabbi Meir says: he can also take terumah and tithes for produce elsewhere.

If one had his produce in a storehouse, and he gave a seah to a Levite and a seah to a poor person, he may set aside another eight seahs and eat them, the words of Rabbi Meir. But the sages say: he may only set aside according to proportion.

The amount of terumah: A generous amount: one fortieth. Beth Shammai say: one thirtieth. The average amount: one fiftieth. A stingy amount: one sixtieth. If he gave terumah and discovered that it was only one sixtieth, his terumah is valid and he need not give again. If he does go back and add to it, [the extra amount] is liable to tithes. If he found that it was only one sixty-first it is valid, but he must give terumah again according to his established practice, in measure, weight or number. Rabbi Judah says: even if it be not from produce close by.

One who says to his messenger: “Go and give terumah [for me],” he should give terumah in accordance with the mind of the owner. If he does not know the mind of the owner, he gives according to the average amount one fiftieth. If he gave ten parts less or more, the terumah is terumah. If, however, his intention was to add even one part more, his terumah is not terumah.

One who wishes to give more terumah:Rabbi Eliezer says: he may give up to a tenth part, as in the case of heave-offering of tithe. [If he gave] more than this [measure] he must make it terumah of tithe for other produce. Rabbi Ishmael says: half non-sacred produce and half terumah. Rabbi Tarfon and Rabbi Akiba say: as long as he retains a part as non-sacred produce.

Rabbi Eliezer says: terumah can be taken out [if it falls into] a hundred and one parts. Rabbi Joshua says: in a hundred and more, and this “more” has no definite measure. Rabbi Yose ben Meshullam says: this ‘more’ must be a kav to a hundred seahs, a sixth [of the seah] which renders the whole as medumma.

Rabbi Joshua says: black figs can bring up white ones, and white ones can bring up black ones. In the case of cakes of figs, the large can bring up the small, and the small can bring up the large. Round cakes of figs can bring up square cakes, and square cakes can bring up round ones. Rabbi Eliezer prohibits this. Rabbi Akiba says: if the kind which fell in is known, then the one kind cannot bring up the other kind, but if the kind is not known, the one kind can bring up the other.

How so? If there were fifty black figs and fifty white fig, and a black fig fell in, the black figs are forbidden, but the white figs are permitted; and if a white fig fell in them, the white figs are forbidden and the black figs are permitted. If it is unknown which kind fell in, then each kind helps to bring up the other. In this case, Rabbi Eliezer is stringent and Rabbi Joshua is lenient.

But in this, Rabbi Eliezer is more lenient and Rabbi Joshua more stringent. One was pressing a litra of dried figs [of terumah] into a jar and he didn’t know which: Rabbi Eliezer says: they are to be regarded as if they were separated, so that those below can bring up those above. Rabbi Joshua says: it cannot be brought up unless there are a hundred jars.

A seah of terumah which fell on top of a pile and he skimmed it off: Rabbi Eliezer says: if in that which he skimmed off there are hundred seahs, it can be taken out [through a ratio of] one hundred to one. But Rabbi Joshua says: it cannot be brought up. A seah of terumah which fell on top of a pile, he must skim it off. If so, why did they say that terumah can be taken up in one hundred and one parts? [Only] if it is not known whether it has become mixed up or where it has fallen.

Two baskets or two piles and a seah of terumah fell on top of one of them and it is not known into which it had fallen, they bring up the terumah in the other. Rabbi Shimon says: even if they are in two cities, they bring up the terumah in the other.

Rabbi Yose said: A case once came before Rabbi Akiva concerning fifty bundles of vegetables into which a bundle of the same size had fallen, half of which was terumah. And I said in front of him, that it can be brought up, not because terumah can be brought up in fifty-one, but because there were one hundred and two halves there.