A wall that resulted from excavation is ruled as a garlic peel. How so? There is a wall between two recesses or between two underground chambers. [If] tumah is in the open areas of the catacomb, and there are utensils in the wall that are covered very thinly, [the utensils] remain tahor. [If] tumah is in the wall, covered very thinly, and in the open areas there are utensils, [the utensils] re-main tahor. [If] tumah is underneath a pillar, tumah penetrates upward and downward.

Utensils that are beneath a capital remain tahor. R’ Yochanan ben Nuri declares [them] tamei. [In a case where] the tumah and the utensils are beneath the capital, if there is a space of a handbreadth, the [utensils] are tamei; if not, they remain tahor. Two wall closets are one beside the other or one above the other. One of [the closets] is opened; it becomes tamei and so does the house, while the other [closet] remains tahor. [However, if the door is closed,] the wall closets are treated as if there is no empty space inside them at all, and they are ruled half and half to make the house tamei.