Our ship ploughed her way through the sea, raising a mass of foam brilliant with globules of light. These globules swept astern along the sides of the ship, and disappeared further on. We left behind us an undulating luminous wake, resembling a long bright snake following us, which was gradually in the distance engulfed by the ocean. This luminous track seemed to be reeled off from a windlass at the stern of the ship. As I watched this white serpentine phosphorescent pathway, I thought of the countless wakes that had been made in like manner since vessels sailed upon the seas, on their way to different lands, for thousands of years past, yet not one of those tracks has ever been seen again. No wonder that the Norsemen called the sea "The Hidden Path." On deck were four men on the watch, who guarded the lives of those who had gone below to sleep. The man at the helm watched the compass, which was lighted by a lamp. A man at the prow was on the lookout for sudden danger--ships, derelicts, or rocks. Another stood amidships. The first mate paced the deck, watching for any change in the wind. Suddenly the man at the prow shouted: "Light on the starboard bow!" It was the light of a ship sailing in the opposite direction towards us. In a snowstorm, in a fog, we might have collided; then both might have gone to the bottom of the sea. To the leeward of us was the barren, forbidding coast; to the windward lay rocky islands. "Dear compass," I whispered, "we trust in thee; lead us right; the night is very dark, and our eyes cannot see rocks ahead, except, perchance, when it is too late." Suddenly the bell struck: One, two, three, four, five, six, seven, eight. It was midnight--time for the watch below to relieve the one on duty, and for the captain to take the place of the mate. Every four hours this change is made. I remained on deck, for I wanted to watch this dark night. I came on deck early the next morning, for I smothered in the close confined cabin--I had been so accustomed to the bracing open air. As I looked around me I saw nothing but the great horizon which surrounded us. It had seemed so near every day, as we sailed towards it, and yet, no matter how long we sailed, we never came nearer. This was because the horizon is the boundless space in the midst of which the earth moves on its axis round the sun.