Summary

Talmud (Rodkinson Edition) — Book 2…

If a man deposit his Erub (for the combination of courts) in a vestibule, gallery, or balcony, it is not a lawful Erub. Should a man reside in any such place, who has not joined in the Erub, he cannot prevent the other inmates of the court (from carrying therein) . If a man deposit his Erub in a hay-loft, or in a stable, or in a woodshed, or in a granary, it is a legal Erub, and one who dwells there (if he had not joined in the Erub) impedes the other inmates of the court.
Source: Wikisource

Talmud (Rodkinson Edition) — Book 2…

If the inhabitants of a court and the inhabitants of a balcony should have forgotten to combine an Erub, whatever is above ten spans from the ground is considered as belonging to the balcony, and whatever is less than ten spans high from the ground is considered as belonging to the court. If the earth dug out of a ditch, or a stone, be ten spans high, they belong to the balcony
Source: Wikisource

Talmud (Rodkinson Edition) — Book 2…

Why should a canal between two walls containing apertures not be considered as the holes in unclaimed ground; for prior to its entering the space between the two walls it was undoubtedly over four spans wide, and hence unclaimed ground (as holes in public or private ground are considered as part of public or private ground respectively, see Tract Sabbath, p. 11) ? Abayi bar Abhin and R. Hanina bar Abhin both declare, that this theory (of holes being equal to the ground) does not exist where unclaimed ground is concerned.
Source: Wikisource

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