Moby-Dick Questions Chs. 73-80: What do you make of Stubb’s believing that Fedallah

What do you make of Stubb’s believing that Fedallah is the devil in disguise?  At the end of ch. 73, when the Pequod is aslant, what rights the ship?  By naming the two whales’ heads John Locke and Immanuel Kant, what larger point is Ishmael making?  Why do you suppose Ishmael is so fascinated with heads?  How do you interpret Ishmael calling the Right Whale’s head a “Stoic” and the Sperm Whale’s head a “Platonian” at the end of ch. 75?  How does this contrast with Ahab’s views?  What is the meaning of the last sentence of ch. 78, in Ishmael’s commentary on Tashtego falling into the whale’s head?  In ch. 79, “The Prairie,” how does Ishmael relate reading a human’s head to a whale’s head?