Bava Batra

R. Shisha b. R. Idi said: It  may, in fact, be in accordance with the view of R. Simeon,  but here it dealt with the case of miscarriages.  But since the one [is] for miscarriages, the other also [should be] for miscarriages, [and the distance] should, [consequently], be eighteen [cubits]! — One [grotto] for miscarriages is assumed, two [grottos] for miscarriages are not. Contradictions were pointed out between two statements of the Rabbis  and [also] between two statements of R. Simeon. For we learnt:  [If] a vineyard is planted on [an area of] less than four cubits, R. Simeon says it is not [regarded as] a vineyard, and the Sages say: [It is regarded as] a vineyard, the intervening vines being treated as if they were not in existence. [Is not the statement] of the Rabbis [there]  contradictory to their statement [with reference to corpses];  and [the statement there] of R. Simeon  contradictory to his [statement here]?  — There is no contradiction between the two statements of R. Simeon; [for] there, people do not plant [vines] with the object of pulling  [them] out, [but] here, [a burial] may sometimes take place at twilight and [the corpse] is put down temporarily.  There is also no contradiction between the two statements of the Rabbis; [for] here, since [the body] is disgraced, [the spot] cannot be designated a grave,  [but] there, [the owner, when planting the vines] may think whichever tree will be sound will remain,  and whichever is a failure will be [used] for firewood. MISHNAH. IF ONE SAYS TO ANOTHER: 'I SELL YOU A BETH KOR  OF ARABLE LAND',  [AND] IT CONTAINED CLEFTS TEN HANDBREADTHS DEEP, OR ROCKS TEN HANDBREADTHS HIGH, THESE ARE NOT TO BE MEASURED WITH IT. [IF THEY ARE] LESS THAN THIS,  THEY ARE TO BE MEASURED WITH IT. IF, HOWEVER, HE SAID TO HIM, 'ABOUT A BETH KOR OF ARABLE LAND, EVEN IF [THE LAND] CONTAINED CLEFTS DEEPER THAN TEN, OR ROCKS HIGHER THAN TEN HANDBREADTHS, THEY ARE TO MEASURED WITH IT. GEMARA. We learnt elsewhere: He who consecrates his field  in the time [when the laws] of the jubilee year  [are in force], must pay for an area in which a homer  of barley may be sown, fifty shekels of silver.  If it contained clefts ten handbreadths deep, or rocks ten handbreadths high