More on the sotah's water - and how earth (and ashes) need to be added to it. Plus, the mesorah/tradition on the writing of this document, as well as that of divorce, and more. Which gives us tradition overriding logic, as we also say in Nazir. Also, the order of the dust in the water (or is that water over dust?), and the parallel to the purification process with the parah adumah, the red heifer.