Letter from Superintendent Lipsner to Robert Shank on August 27, 1918. In his reprimand of the pilot, Lipsner noted that Shank was charged with an "interrupted flight" for landing while lost to get directions. Lipsner was not a pilot, and so went by the book, including instructing pilots to trust instruments that were notoriously unreliable. He reminds Shank that "we must study our compasses and watch them carefully." What Lipsner did not realize is that the early compasses were more often wrong than right.