A few days later, Dr. Ambler told De Long of a curious dream he’d had about Edison’s lamps. In the dream, Sir John Franklin, the long-lost British explorer, had come aboard the Jeannette for a tour. Dr. Ambler led Franklin all over the ship and told him excitedly about Edison’s electric lights, an invention that, of course, wasn’t even dreamed about in Franklin’s day. But Franklin bluntly interrupted him. “Your electric machine,” he said, “is not worth a damn.”
