Zevahim 73: The Case of the Dried Figs

The principle that is learned from the details surrounding the dried figs, a specific example: when things are sold by number, they can't be nullified in a majority. With some dispute about when and whether the majority can actually nullify the figs, for example. Also, a mixture of sacrifices, where the process of offering them is different, and therefore there's no way to treat them stringently - as in the sin-offering and the burn-offering, where the blood is put below and above the red line respectively.