Aristotle's Treatise on Comedy

Aristotle's constitution of athens survives only from an oxfeincus papyrus. And there are a lot of things in the ancient world that we know existed into the renaissance and it's gone. We would like to have aristotle's treatise on comedy, rather just, you know, the poetics and tragedy. i wish we had this, the petronius setiricon, a massive novel. I don't think there's very much of xenophon's writing.