A descriptive daf... of details of slaughtering. That is, cutting the trachea in ways that are not obviously kosher, but may be so, and that leads to disputes over how and when which cutting took priority to determine the kashrut of the shechitah. Plus, a description of the sages sitting in rows and learning, considering different permutations where the shechitah is kosher or not. Also, what if the person doing the slaughtering is not Jewish? When is there leeway to see that shechitah as kosher? And all the implications for melikah...