I rose and did what he had commanded.
He lay quiet for a while, lost in thought apparently, and then raised himself up upon his elbow again, and asked for some more brandy.
"You don't think I am, do you, Doc?" he asked, as I was putting the bottle back into the after-locker. "Tell me now, as man to man, do you think that I am mad?"
"I think you have something on your mind," I answered, "which is exciting you and doing you a good deal of harm."
"Right there, lad!" he cried, his eyes sparkling from the effects of the brandy. "Plenty on my mind—plenty! But I can work out the latitude and the longitude, and I can handle my sextant and manage my logarithms. You couldn't prove me mad in a court of law, could you, now?" It was curious to hear the man lying back and coolly arguing out the question of his own sanity.
"Perhaps not," I said; "but still I think you would be wise to get home as soon as you can, and settle down to a quiet life for a while."
"Get home, eh?" he muttered, with a sneer upon his face. "One word for me and two for yourself, lad. Settle down with Flora—pretty little Flora. Are bad dreams signs of madness?"
"Sometimes," I answered.
"What else? What would be the first symptoms?"
"Pains in the head, noises in the ears flashes before the eyes, delusions"——
