“That’s it,” assented the husband. “He had his wife and family with him, and servants. He came ashore at all the locks and asked the name of the villages, whether from boatmen or lock-keepers; and then he wrote, wrote them down. Oh, he wrote enormously! I suppose it was a wager.”

A wager was a common enough explanation for our own exploits, but it seemed an original reason for taking notes.