ONCE HE'S HAD THE OPPORTUNITY to settle in aboard Minerva, Daniel realizes it's certain that when, God willing, he reaches London, he'll be asked to provide a sort of affidavit telling what he knows about the invention of the calculus. As long as the ship's not moving too violently, he sits down at the large dining-table in the common-room, one deck below his cabin, and tries to organize his thoughts.