I had not slept for eighty hours. … I had been steering for nine hours while leading the other boats and found it almost impossible to keep awake. Greenstreet—a fine seaman—continually urged me to hand over the tiller and have a nap. I had, however, become so obsessed with steering for the island … that I kept on when I should have handed it over to him. The consequence was that at intervals I fell asleep for a few seconds and the Docker… sheered off course. Everyone through fatigue and loss of sleep had slightly lost his judgment.1

—Frank A. Worsley

Those ...

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