First, finishing chapter 9: If a non-kohen served in the Temple, that would be punishable by death "in the hands of heaven." But that opinion seems to be contradicted by the very sages who said it to begin with. Why so? The Gemara resolves the question. Next, beginning chapter 10, starting with a new mishnah: Those who are sentenced to death by strangulation. Note, again, the special status of the daughter of the kohen. Plus, the sources for these violations leading to this particular execution. Including the death sentence for hitting a person -- specifically in the event of a wound. Plus, a new kind of linguistic comparison of applying details to a new case.